28809788600 has 48 divisors (see below), whose sum is σ = 67025137200. Its totient is φ = 11516624640.

The previous prime is 28809788587. The next prime is 28809788603. The reversal of 28809788600 is 688790882.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28809788603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 277037 + ... + 366563.

It is an arithmetic number, because the mean of its divisors is an integer number (1396357025).

Almost surely, 2^28809788600 is an apocalyptic number.

28809788600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28809788600 is an abundant number, since it is smaller than the sum of its proper divisors (38215348600).

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

28809788600 is a wasteful number, since it uses less digits than its factorization.

28809788600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91152 (or 91143 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 56.

The spelling of 28809788600 in words is "twenty-eight billion, eight hundred nine million, seven hundred eighty-eight thousand, six hundred".