28658284875 has 96 divisors (see below), whose sum is σ = 56573899200. Its totient is φ = 13841664000.

The previous prime is 28658284867. The next prime is 28658284883. The reversal of 28658284875 is 57848285682.

28658284875 is a `hidden beast` number, since 2 + 8 + 6 + 582 + 8 + 48 + 7 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (28658284867) and next prime (28658284883).

It is not a de Polignac number, because 28658284875 - 2³ = 28658284867 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3324571 + ... + 3333179.

It is an arithmetic number, because the mean of its divisors is an integer number (589311450).

Almost surely, 2^28658284875 is an apocalyptic number.

28658284875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

28658284875 is a deficient number, since it is larger than the sum of its proper divisors (27915614325).

28658284875 is a wasteful number, since it uses less digits than its factorization.

28658284875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8910 (or 8897 counting only the distinct ones).

The product of its digits is 68812800, while the sum is 63.

The spelling of 28658284875 in words is "twenty-eight billion, six hundred fifty-eight million, two hundred eighty-four thousand, eight hundred seventy-five".