28797582725 has 12 divisors (see below), whose sum is σ = 35711151840. Its totient is φ = 23036679600.

The previous prime is 28797582703. The next prime is 28797582733. The reversal of 28797582725 is 52728579782.

It is a de Polignac number, because none of the positive numbers 2^k-28797582725 is a prime.

It is a super-3 number, since 3×28797582725³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

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, 669416 + ... + 711134.

It is an arithmetic number, because the mean of its divisors is an integer number (2975929320).

Almost surely, 2^28797582725 is an apocalyptic number.

28797582725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28797582725 is a deficient number, since it is larger than the sum of its proper divisors (6913569115).

28797582725 is a wasteful number, since it uses less digits than its factorization.

28797582725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69340 (or 69335 counting only the distinct ones).

The product of its digits is 39513600, while the sum is 62.

The spelling of 28797582725 in words is "twenty-eight billion, seven hundred ninety-seven million, five hundred eighty-two thousand, seven hundred twenty-five".