28300131504 has 60 divisors (see below), whose sum is σ = 79329676296. Its totient is φ = 9418058496.

The previous prime is 28300131493. The next prime is 28300131521. The reversal of 28300131504 is 40513100382.

It is a happy number.

28300131504 is a `hidden beast` number, since 28 + 3 + 0 + 0 + 131 + 504 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70414 + ... + 248109.

Almost surely, 2^28300131504 is an apocalyptic number.

28300131504 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28300131504 is an abundant number, since it is smaller than the sum of its proper divisors (51029544792).

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

28300131504 is a wasteful number, since it uses less digits than its factorization.

28300131504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319154 (or 319145 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 28300131504 its reverse (40513100382), we get a palindrome (68813231886).

The spelling of 28300131504 in words is "twenty-eight billion, three hundred million, one hundred thirty-one thousand, five hundred four".