28690608132 has 72 divisors (see below), whose sum is σ = 74618957280. Its totient is φ = 9533298960.

The previous prime is 28690608119. The next prime is 28690608143. The reversal of 28690608132 is 23180609682.

28690608132 is a `hidden beast` number, since 2 + 8 + 6 + 9 + 0 + 608 + 1 + 32 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15841507 + ... + 15843317.

Almost surely, 2^28690608132 is an apocalyptic number.

It is an amenable number.

28690608132 is an abundant number, since it is smaller than the sum of its proper divisors (45928349148).

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

28690608132 is a wasteful number, since it uses less digits than its factorization.

28690608132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2590 (or 2199 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The spelling of 28690608132 in words is "twenty-eight billion, six hundred ninety million, six hundred eight thousand, one hundred thirty-two".