28898812320 has 144 divisors (see below), whose sum is σ = 105893591328. Its totient is φ = 6605437440.

The previous prime is 28898812291. The next prime is 28898812331. The reversal of 28898812320 is 2321889882.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 590826 + ... + 637865.

It is an arithmetic number, because the mean of its divisors is an integer number (735372162).

Almost surely, 2^28898812320 is an apocalyptic number.

28898812320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28898812320 is an abundant number, since it is smaller than the sum of its proper divisors (76994779008).

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

28898812320 is a wasteful number, since it uses less digits than its factorization.

28898812320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228723 (or 1228708 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 51.

The spelling of 28898812320 in words is "twenty-eight billion, eight hundred ninety-eight million, eight hundred twelve thousand, three hundred twenty".