28556468368 has 40 divisors (see below), whose sum is σ = 55681364736. Its totient is φ = 14187264000.

The previous prime is 28556468333. The next prime is 28556468377. The reversal of 28556468368 is 86386465582.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2808093 + ... + 2818243.

Almost surely, 2^28556468368 is an apocalyptic number.

It is an amenable number.

28556468368 is a deficient number, since it is larger than the sum of its proper divisors (27124896368).

28556468368 is a wasteful number, since it uses less digits than its factorization.

28556468368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11263 (or 11257 counting only the distinct ones).

The product of its digits is 66355200, while the sum is 61.

The spelling of 28556468368 in words is "twenty-eight billion, five hundred fifty-six million, four hundred sixty-eight thousand, three hundred sixty-eight".