28456725792 has 72 divisors (see below), whose sum is σ = 82107094608. Its totient is φ = 8623246720.

The previous prime is 28456725757. The next prime is 28456725823. The reversal of 28456725792 is 29752765482.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1213278 + ... + 1236509.

It is an arithmetic number, because the mean of its divisors is an integer number (1140376314).

Almost surely, 2^28456725792 is an apocalyptic number.

28456725792 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28456725792 is an abundant number, since it is smaller than the sum of its proper divisors (53650368816).

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

28456725792 is a wasteful number, since it uses less digits than its factorization.

28456725792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2449822 (or 2449803 counting only the distinct ones).

The product of its digits is 16934400, while the sum is 57.

The spelling of 28456725792 in words is "twenty-eight billion, four hundred fifty-six million, seven hundred twenty-five thousand, seven hundred ninety-two".