28992604732 has 24 divisors (see below), whose sum is σ = 62445610976. Its totient is φ = 11469601728.

The previous prime is 28992604727. The next prime is 28992604733. The reversal of 28992604732 is 23740629982.

It is a super-2 number, since 2×28992604732² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 28992604732.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28992604733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39824643 + ... + 39825370.

Almost surely, 2^28992604732 is an apocalyptic number.

It is an amenable number.

28992604732 is an abundant number, since it is smaller than the sum of its proper divisors (33453006244).

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

28992604732 is a wasteful number, since it uses less digits than its factorization.

28992604732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79650037 (or 79650035 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 52.

The spelling of 28992604732 in words is "twenty-eight billion, nine hundred ninety-two million, six hundred four thousand, seven hundred thirty-two".