82193647872 has 144 divisors (see below), whose sum is σ = 260875883520. Its totient is φ = 22462826496.

The previous prime is 82193647859. The next prime is 82193647901. The reversal of 82193647872 is 27874639128.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208722 + ... + 456017.

It is an arithmetic number, because the mean of its divisors is an integer number (1811638080).

Almost surely, 2^82193647872 is an apocalyptic number.

It is an amenable number.

82193647872 is an abundant number, since it is smaller than the sum of its proper divisors (178682235648).

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

82193647872 is a wasteful number, since it uses less digits than its factorization.

82193647872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 664788 (or 664774 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 57.

The spelling of 82193647872 in words is "eighty-two billion, one hundred ninety-three million, six hundred forty-seven thousand, eight hundred seventy-two".