38669775812 has 12 divisors (see below), whose sum is σ = 69501083820. Its totient is φ = 18812323296.

The previous prime is 38669775803. The next prime is 38669775829. The reversal of 38669775812 is 21857796683.

It can be written as a sum of positive squares in 2 ways, for example, as 26352327556 + 12317448256 = 162334^2 + 110984^2 .

It is a super-2 number, since 2×38669775812² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130640987 + ... + 130641282.

It is an arithmetic number, because the mean of its divisors is an integer number (5791756985).

Almost surely, 2^38669775812 is an apocalyptic number.

It is an amenable number.

38669775812 is a deficient number, since it is larger than the sum of its proper divisors (30831308008).

38669775812 is a wasteful number, since it uses less digits than its factorization.

38669775812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261282310 (or 261282308 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 62.

The spelling of 38669775812 in words is "thirty-eight billion, six hundred sixty-nine million, seven hundred seventy-five thousand, eight hundred twelve".