38662808257 has 6 divisors (see below), whose sum is σ = 38772769862. Its totient is φ = 38553157632.

The previous prime is 38662808201. The next prime is 38662808273. The reversal of 38662808257 is 75280826683.

It can be written as a sum of positive squares in 3 ways, for example, as 6491363761 + 32171444496 = 80569^2 + 179364^2 .

It is not a de Polignac number, because 38662808257 - 2³⁵ = 4303069889 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 38662808198 and 38662808207.

It is not an unprimeable number, because it can be changed into a prime (38662808287) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 30528 + ... + 279745.

Almost surely, 2^38662808257 is an apocalyptic number.

It is an amenable number.

38662808257 is a deficient number, since it is larger than the sum of its proper divisors (109961605).

38662808257 is an frugal number, since it uses more digits than its factorization.

38662808257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310979 (or 310626 counting only the distinct ones).

The product of its (nonzero) digits is 7741440, while the sum is 55.

The spelling of 38662808257 in words is "thirty-eight billion, six hundred sixty-two million, eight hundred eight thousand, two hundred fifty-seven".