28632891052 has 12 divisors (see below), whose sum is σ = 50123393320. Its totient is φ = 14311921536.

The previous prime is 28632891043. The next prime is 28632891083. The reversal of 28632891052 is 25019823682.

It is a junction number, because it is equal to n+sod(n) for n = 28632890993 and 28632891011.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1116738 + ... + 1142089.

Almost surely, 2^28632891052 is an apocalyptic number.

It is an amenable number.

28632891052 is a deficient number, since it is larger than the sum of its proper divisors (21490502268).

28632891052 is a wasteful number, since it uses less digits than its factorization.

28632891052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2262000 (or 2261998 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 28632891052 in words is "twenty-eight billion, six hundred thirty-two million, eight hundred ninety-one thousand, fifty-two".