28575216100 has 36 divisors (see below), whose sum is σ = 64704233664. Its totient is φ = 10933125280.

The previous prime is 28575216073. The next prime is 28575216127. The reversal of 28575216100 is 161257582.

It is an interprime number because it is at equal distance from previous prime (28575216073) and next prime (28575216127).

It is a self number, because there is not a number n which added to its sum of digits gives 28575216100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6209704 + ... + 6214303.

It is an arithmetic number, because the mean of its divisors is an integer number (1797339824).

Almost surely, 2^28575216100 is an apocalyptic number.

28575216100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28575216100 is an abundant number, since it is smaller than the sum of its proper divisors (36129017564).

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

28575216100 is a wasteful number, since it uses less digits than its factorization.

28575216100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12424044 (or 12424037 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 37.

The spelling of 28575216100 in words is "twenty-eight billion, five hundred seventy-five million, two hundred sixteen thousand, one hundred".