28555345132 has 24 divisors (see below), whose sum is σ = 50884156400. Its totient is φ = 14017872960.

The previous prime is 28555345129. The next prime is 28555345163. The reversal of 28555345132 is 23154355582.

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, 26494 + ... + 240442.

Almost surely, 2^28555345132 is an apocalyptic number.

It is an amenable number.

28555345132 is a deficient number, since it is larger than the sum of its proper divisors (22328811268).

28555345132 is a wasteful number, since it uses less digits than its factorization.

28555345132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214561 (or 214559 counting only the distinct ones).

The product of its digits is 720000, while the sum is 43.

The spelling of 28555345132 in words is "twenty-eight billion, five hundred fifty-five million, three hundred forty-five thousand, one hundred thirty-two".