38156709768 has 32 divisors (see below), whose sum is σ = 95943182400. Its totient is φ = 12645382208.

The previous prime is 38156709733. The next prime is 38156709769. The reversal of 38156709768 is 86790765183.

It is a super-2 number, since 2×38156709768² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38156709769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4590828 + ... + 4599131.

It is an arithmetic number, because the mean of its divisors is an integer number (2998224450).

Almost surely, 2^38156709768 is an apocalyptic number.

It is an amenable number.

38156709768 is an abundant number, since it is smaller than the sum of its proper divisors (57786472632).

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

38156709768 is a wasteful number, since it uses less digits than its factorization.

38156709768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9190141 (or 9190137 counting only the distinct ones).

The product of its (nonzero) digits is 15240960, while the sum is 60.

The spelling of 38156709768 in words is "thirty-eight billion, one hundred fifty-six million, seven hundred nine thousand, seven hundred sixty-eight".