28992070944 has 72 divisors (see below), whose sum is σ = 84363591312. Its totient is φ = 9439274880.

The previous prime is 28992070909. The next prime is 28992070967. The reversal of 28992070944 is 44907029982.

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×28992070944² (a number of 22 digits) contains 22 as substring.

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, 1158162 + ... + 1182929.

It is an arithmetic number, because the mean of its divisors is an integer number (1171716546).

Almost surely, 2^28992070944 is an apocalyptic number.

28992070944 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28992070944 is an abundant number, since it is smaller than the sum of its proper divisors (55371520368).

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

28992070944 is a wasteful number, since it uses less digits than its factorization.

28992070944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2341150 (or 2341139 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 54.

The spelling of 28992070944 in words is "twenty-eight billion, nine hundred ninety-two million, seventy thousand, nine hundred forty-four".