28533003864 has 32 divisors (see below), whose sum is σ = 75528540720. Its totient is φ = 8951530496.

The previous prime is 28533003857. The next prime is 28533003899. The reversal of 28533003864 is 46830033582.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34966509 + ... + 34967324.

Almost surely, 2^28533003864 is an apocalyptic number.

28533003864 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28533003864 is an abundant number, since it is smaller than the sum of its proper divisors (46995536856).

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

28533003864 is a wasteful number, since it uses less digits than its factorization.

28533003864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69933859 (or 69933855 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 42.

The spelling of 28533003864 in words is "twenty-eight billion, five hundred thirty-three million, three thousand, eight hundred sixty-four".