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11668736837 = 131457194911
BaseRepresentation
bin10101101111000001…
…01100101101000101
31010010012210020201102
422313200230231011
5142344144034322
65205513305445
7562106424632
oct126740545505
933105706642
1011668736837
114a4877476a
122317a05285
13113c63bb14
147c9a2b189
15484638792
hex2b782cb45

11668736837 has 8 divisors (see below), whose sum is σ = 11783599872. Its totient is φ = 11554264800.

The previous prime is 11668736819. The next prime is 11668736843. The reversal of 11668736837 is 73863786611.

11668736837 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11668736837 - 212 = 11668732741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11668796837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37589 + ... + 157322.

It is an arithmetic number, because the mean of its divisors is an integer number (1472949984).

Almost surely, 211668736837 is an apocalyptic number.

It is an amenable number.

11668736837 is a deficient number, since it is larger than the sum of its proper divisors (114863035).

11668736837 is a wasteful number, since it uses less digits than its factorization.

11668736837 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195499.

The product of its digits is 6096384, while the sum is 56.

The spelling of 11668736837 in words is "eleven billion, six hundred sixty-eight million, seven hundred thirty-six thousand, eight hundred thirty-seven".

Divisors: 1 131 457 59867 194911 25533341 89074327 11668736837