28657134912 has 84 divisors (see below), whose sum is σ = 88201134240. Its totient is φ = 8187750144.

The previous prime is 28657134907. The next prime is 28657134929. The reversal of 28657134912 is 21943175682.

It is a tau number, because it is divible by the number of its divisors (84).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

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, 1513612 + ... + 1532427.

Almost surely, 2^28657134912 is an apocalyptic number.

It is an amenable number.

28657134912 is an abundant number, since it is smaller than the sum of its proper divisors (59543999328).

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

28657134912 is a wasteful number, since it uses less digits than its factorization.

28657134912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3046068 (or 3046051 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The spelling of 28657134912 in words is "twenty-eight billion, six hundred fifty-seven million, one hundred thirty-four thousand, nine hundred twelve".