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11868191290368 = 2103777110663
BaseRepresentation
bin1010110010110100011101…
…0100110111010000000000
31120000120212122201220000000
42230231013110313100000
53023422023432242433
641124101040000000
72333306562324150
oct254550724672000
946016778656000
1011868191290368
1138662a9642426
1213b8175300000
1368121cb9888a
142d05d0210760
15158abb3d3113
hexacb47537400

11868191290368 has 704 divisors, whose sum is σ = 41241486090240. Its totient is φ = 3342838947840.

The previous prime is 11868191290363. The next prime is 11868191290409. The reversal of 11868191290368 is 86309219186811.

11868191290368 is a `hidden beast` number, since 1 + 1 + 8 + 68 + 191 + 29 + 0 + 368 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11868191290363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1113020205 + ... + 1113030867.

Almost surely, 211868191290368 is an apocalyptic number.

11868191290368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11868191290368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20620743045120).

11868191290368 is an abundant number, since it is smaller than the sum of its proper divisors (29373294799872).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11868191290368 is an frugal number, since it uses more digits than its factorization.

11868191290368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10782 (or 10746 counting only the distinct ones).

The product of its (nonzero) digits is 8957952, while the sum is 63.

The spelling of 11868191290368 in words is "eleven trillion, eight hundred sixty-eight billion, one hundred ninety-one million, two hundred ninety thousand, three hundred sixty-eight".