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68651874000 = 243553294871
BaseRepresentation
bin111111111011111110…
…000111011011010000
320120012110121112200000
4333323332013123100
52111044334432000
651312131530000
74650154205103
oct777376073320
9216173545600
1068651874000
112712a214056
121137b459900
13662105c268
14347396873a
151bbc0b6000
hexffbf876d0

68651874000 has 480 divisors, whose sum is σ = 257286032640. Its totient is φ = 17672256000.

The previous prime is 68651873989. The next prime is 68651874043. The reversal of 68651874000 is 47815686.

It is a happy number.

68651874000 is a `hidden beast` number, since 6 + 8 + 65 + 187 + 400 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14091565 + ... + 14096435.

It is an arithmetic number, because the mean of its divisors is an integer number (536012568).

Almost surely, 268651874000 is an apocalyptic number.

68651874000 is a gapful number since it is divisible by the number (60) 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 68651874000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128643016320).

68651874000 is an abundant number, since it is smaller than the sum of its proper divisors (188634158640).

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

68651874000 is a wasteful number, since it uses less digits than its factorization.

68651874000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938 (or 4910 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 68651874000 in words is "sixty-eight billion, six hundred fifty-one million, eight hundred seventy-four thousand".