22728924816 has 40 divisors (see below), whose sum is σ = 63233036160. Its totient is φ = 6993515136.

The previous prime is 22728924793. The next prime is 22728924859. The reversal of 22728924816 is 61842982722.

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, 18211656 + ... + 18212903.

It is an arithmetic number, because the mean of its divisors is an integer number (1580825904).

Almost surely, 2^22728924816 is an apocalyptic number.

22728924816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

22728924816 is an abundant number, since it is smaller than the sum of its proper divisors (40504111344).

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

22728924816 is a wasteful number, since it uses less digits than its factorization.

22728924816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36424583 (or 36424577 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 51.

The spelling of 22728924816 in words is "twenty-two billion, seven hundred twenty-eight million, nine hundred twenty-four thousand, eight hundred sixteen".