28573100808 has 64 divisors (see below), whose sum is σ = 81803934720. Its totient is φ = 8147092800.

The previous prime is 28573100807. The next prime is 28573100819. The reversal of 28573100808 is 80800137582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a self number, because there is not a number n which added to its sum of digits gives 28573100808.

It is not an unprimeable number, because it can be changed into a prime (28573100807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 90708 + ... + 255683.

It is an arithmetic number, because the mean of its divisors is an integer number (1278186480).

Almost surely, 2^28573100808 is an apocalyptic number.

28573100808 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28573100808 is an abundant number, since it is smaller than the sum of its proper divisors (53230833912).

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

28573100808 is a wasteful number, since it uses less digits than its factorization.

28573100808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346898 (or 346894 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 42.

The spelling of 28573100808 in words is "twenty-eight billion, five hundred seventy-three million, one hundred thousand, eight hundred eight".