28831075788 has 96 divisors (see below), whose sum is σ = 69089061888. Its totient is φ = 9354945600.

The previous prime is 28831075781. The next prime is 28831075789. The reversal of 28831075788 is 88757013882.

It is not an unprimeable number, because it can be changed into a prime (28831075781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34861831 + ... + 34862657.

It is an arithmetic number, because the mean of its divisors is an integer number (719677728).

Almost surely, 2^28831075788 is an apocalyptic number.

It is an amenable number.

28831075788 is an abundant number, since it is smaller than the sum of its proper divisors (40257986100).

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

28831075788 is a wasteful number, since it uses less digits than its factorization.

28831075788 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 57.

The spelling of 28831075788 in words is "twenty-eight billion, eight hundred thirty-one million, seventy-five thousand, seven hundred eighty-eight".