38677661236 has 24 divisors (see below), whose sum is σ = 68004860840. Its totient is φ = 19247760000.

The previous prime is 38677661227. The next prime is 38677661249. The reversal of 38677661236 is 63216677683.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2897668900 + 35779992336 = 53830^2 + 189156^2 .

It is a super-2 number, since 2×38677661236² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3677986 + ... + 3688486.

Almost surely, 2^38677661236 is an apocalyptic number.

It is an amenable number.

38677661236 is a deficient number, since it is larger than the sum of its proper divisors (29327199604).

38677661236 is a wasteful number, since it uses less digits than its factorization.

38677661236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14755 (or 14753 counting only the distinct ones).

The product of its digits is 9144576, while the sum is 55.

The spelling of 38677661236 in words is "thirty-eight billion, six hundred seventy-seven million, six hundred sixty-one thousand, two hundred thirty-six".