28880414125 has 8 divisors (see below), whose sum is σ = 36042756984. Its totient is φ = 23104331200.

The previous prime is 28880414111. The next prime is 28880414131. The reversal of 28880414125 is 52141408882.

It can be written as a sum of positive squares in 4 ways, for example, as 41242084 + 28839172041 = 6422^2 + 169821^2 .

It is not a de Polignac number, because 28880414125 - 2⁹ = 28880413613 is a prime.

It is a Duffinian 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, 115521532 + ... + 115521781.

It is an arithmetic number, because the mean of its divisors is an integer number (4505344623).

Almost surely, 2^28880414125 is an apocalyptic number.

28880414125 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28880414125 is a deficient number, since it is larger than the sum of its proper divisors (7162342859).

28880414125 is an equidigital number, since it uses as much as digits as its factorization.

28880414125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231043328 (or 231043318 counting only the distinct ones).

The product of its (nonzero) digits is 163840, while the sum is 43.

The spelling of 28880414125 in words is "twenty-eight billion, eight hundred eighty million, four hundred fourteen thousand, one hundred twenty-five".