28312826664 has 64 divisors (see below), whose sum is σ = 75364603200. Its totient is φ = 8832809984.

The previous prime is 28312826617. The next prime is 28312826671. The reversal of 28312826664 is 46662821382.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120807 + ... + 266870.

It is an arithmetic number, because the mean of its divisors is an integer number (1177571925).

Almost surely, 2^28312826664 is an apocalyptic number.

28312826664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28312826664 is an abundant number, since it is smaller than the sum of its proper divisors (47051776536).

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

28312826664 is a wasteful number, since it uses less digits than its factorization.

28312826664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387882 (or 387878 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The spelling of 28312826664 in words is "twenty-eight billion, three hundred twelve million, eight hundred twenty-six thousand, six hundred sixty-four".