28624838715 has 120 divisors (see below), whose sum is σ = 56980778400. Its totient is φ = 13268259840.

The previous prime is 28624838657. The next prime is 28624838777. The reversal of 28624838715 is 51783842682.

28624838715 is a `hidden beast` number, since 2 + 8 + 6 + 248 + 387 + 15 = 666.

It is not a de Polignac number, because 28624838715 - 2⁶ = 28624838651 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 15152491 + ... + 15154379.

It is an arithmetic number, because the mean of its divisors is an integer number (474839820).

Almost surely, 2^28624838715 is an apocalyptic number.

28624838715 is a deficient number, since it is larger than the sum of its proper divisors (28355939685).

28624838715 is a wasteful number, since it uses less digits than its factorization.

28624838715 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1967 (or 1931 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 28624838715 in words is "twenty-eight billion, six hundred twenty-four million, eight hundred thirty-eight thousand, seven hundred fifteen".