38697295681 has 16 divisors (see below), whose sum is σ = 42780469248. Its totient is φ = 35000547120.

The previous prime is 38697295667. The next prime is 38697295697. The reversal of 38697295681 is 18659279683.

It is not a de Polignac number, because 38697295681 - 2¹⁵ = 38697262913 is a prime.

It is a super-2 number, since 2×38697295681² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38697295621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 188416 + ... + 335998.

It is an arithmetic number, because the mean of its divisors is an integer number (2673779328).

Almost surely, 2^38697295681 is an apocalyptic number.

It is an amenable number.

38697295681 is a deficient number, since it is larger than the sum of its proper divisors (4083173567).

38697295681 is a wasteful number, since it uses less digits than its factorization.

38697295681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147813 (or 147791 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 64.

It can be divided in two parts, 386972 and 95681, that added together give a triangular number (482653 = T₉₈₂).

The spelling of 38697295681 in words is "thirty-eight billion, six hundred ninety-seven million, two hundred ninety-five thousand, six hundred eighty-one".