38643869910170 has 24 divisors (see below), whose sum is σ = 80915531690484. Its totient is φ = 13249326826176.

The previous prime is 38643869910169. The next prime is 38643869910193. The reversal of 38643869910170 is 7101996834683.

It can be written as a sum of positive squares in 2 ways, for example, as 37189884919201 + 1453984990969 = 6098351^2 + 1205813^2 .

It is a junction number, because it is equal to n+sod(n) for n = 38643869910097 and 38643869910106.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39432519827 + ... + 39432520806.

Almost surely, 2^{38643869910170} is an apocalyptic number.

38643869910170 is an abundant number, since it is smaller than the sum of its proper divisors (42271661780314).

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

38643869910170 is a wasteful number, since it uses less digits than its factorization.

38643869910170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78865040654 (or 78865040647 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 65.

The spelling of 38643869910170 in words is "thirty-eight trillion, six hundred forty-three billion, eight hundred sixty-nine million, nine hundred ten thousand, one hundred seventy".