82645964674 has 32 divisors (see below), whose sum is σ = 153210347136. Its totient is φ = 32559425280.

The previous prime is 82645964669. The next prime is 82645964693. The reversal of 82645964674 is 47646954628.

It is a happy number.

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, 898252 + ... + 985975.

It is an arithmetic number, because the mean of its divisors is an integer number (4787823348).

Almost surely, 2^82645964674 is an apocalyptic number.

82645964674 is a deficient number, since it is larger than the sum of its proper divisors (70564382462).

82645964674 is a wasteful number, since it uses less digits than its factorization.

82645964674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1884490.

The product of its digits is 69672960, while the sum is 61.

The spelling of 82645964674 in words is "eighty-two billion, six hundred forty-five million, nine hundred sixty-four thousand, six hundred seventy-four".