28572658272 has 72 divisors (see below), whose sum is σ = 81294464160. Its totient is φ = 9519417600.

The previous prime is 28572658267. The next prime is 28572658351. The reversal of 28572658272 is 27285627582.

28572658272 is a `hidden beast` number, since 2 + 8 + 57 + 2 + 6 + 582 + 7 + 2 = 666.

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

It is a congruent number.

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, 571897 + ... + 619847.

It is an arithmetic number, because the mean of its divisors is an integer number (1129089780).

Almost surely, 2^28572658272 is an apocalyptic number.

It is an amenable number.

28572658272 is an abundant number, since it is smaller than the sum of its proper divisors (52721805888).

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

28572658272 is a wasteful number, since it uses less digits than its factorization.

28572658272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50036 (or 50025 counting only the distinct ones).

The product of its digits is 7526400, while the sum is 54.

The spelling of 28572658272 in words is "twenty-eight billion, five hundred seventy-two million, six hundred fifty-eight thousand, two hundred seventy-two".