28672705164 has 48 divisors (see below), whose sum is σ = 67545612288. Its totient is φ = 9466023168.

The previous prime is 28672705147. The next prime is 28672705183. The reversal of 28672705164 is 46150727682.

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, 887869 + ... + 919595.

It is an arithmetic number, because the mean of its divisors is an integer number (1407200256).

Almost surely, 2^28672705164 is an apocalyptic number.

It is an amenable number.

28672705164 is an abundant number, since it is smaller than the sum of its proper divisors (38872907124).

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

28672705164 is a wasteful number, since it uses less digits than its factorization.

28672705164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32454 (or 32452 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 48.

The spelling of 28672705164 in words is "twenty-eight billion, six hundred seventy-two million, seven hundred five thousand, one hundred sixty-four".