28557614264 has 16 divisors (see below), whose sum is σ = 53549899200. Its totient is φ = 14277641152.

The previous prime is 28557614233. The next prime is 28557614279. The reversal of 28557614264 is 46241675582.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36872 + ... + 241815.

It is an arithmetic number, because the mean of its divisors is an integer number (3346868700).

Almost surely, 2^28557614264 is an apocalyptic number.

It is an amenable number.

28557614264 is a deficient number, since it is larger than the sum of its proper divisors (24992284936).

28557614264 is a wasteful number, since it uses less digits than its factorization.

28557614264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291502 (or 291498 counting only the distinct ones).

The product of its digits is 3225600, while the sum is 50.

The spelling of 28557614264 in words is "twenty-eight billion, five hundred fifty-seven million, six hundred fourteen thousand, two hundred sixty-four".