28152700324772 has 12 divisors (see below), whose sum is σ = 49308522496716. Its totient is φ = 14064551040000.

The previous prime is 28152700324759. The next prime is 28152700324781. The reversal of 28152700324772 is 27742300725182.

It can be written as a sum of positive squares in 2 ways, for example, as 23884567449856 + 4268132874916 = 4887184^2 + 2065946^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28152700324772.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2949775229 + ... + 2949784772.

It is an arithmetic number, because the mean of its divisors is an integer number (4109043541393).

Almost surely, 2^{28152700324772} is an apocalyptic number.

It is an amenable number.

28152700324772 is a deficient number, since it is larger than the sum of its proper divisors (21155822171944).

28152700324772 is a wasteful number, since it uses less digits than its factorization.

28152700324772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5899561198 (or 5899561196 counting only the distinct ones).

The product of its (nonzero) digits is 2634240, while the sum is 50.

The spelling of 28152700324772 in words is "twenty-eight trillion, one hundred fifty-two billion, seven hundred million, three hundred twenty-four thousand, seven hundred seventy-two".