28338753720 has 64 divisors (see below), whose sum is σ = 85858043040. Its totient is φ = 7482176000.

The previous prime is 28338753697. The next prime is 28338753733. The reversal of 28338753720 is 2735783382.

It is a self number, because there is not a number n which added to its sum of digits gives 28338753720.

It is a congruent number.

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, 1156971 + ... + 1181210.

Almost surely, 2^28338753720 is an apocalyptic number.

28338753720 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28338753720 is an abundant number, since it is smaller than the sum of its proper divisors (57519289320).

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

28338753720 is a wasteful number, since it uses less digits than its factorization.

28338753720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2338296 (or 2338292 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 48.

The spelling of 28338753720 in words is "twenty-eight billion, three hundred thirty-eight million, seven hundred fifty-three thousand, seven hundred twenty".