8139445695632 has 20 divisors (see below), whose sum is σ = 15770317966896. Its totient is φ = 4069686220320.

The previous prime is 8139445695631. The next prime is 8139445695659. The reversal of 8139445695632 is 2365965449318.

It is a Smith number, since the sum of its digits (65) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (8139445695631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409094 + ... + 4055397.

Almost surely, 2^{8139445695632} is an apocalyptic number.

It is an amenable number.

8139445695632 is a deficient number, since it is larger than the sum of its proper divisors (7630872271264).

8139445695632 is a wasteful number, since it uses less digits than its factorization.

8139445695632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578446 (or 4578440 counting only the distinct ones).

The product of its digits is 167961600, while the sum is 65.

The spelling of 8139445695632 in words is "eight trillion, one hundred thirty-nine billion, four hundred forty-five million, six hundred ninety-five thousand, six hundred thirty-two".