32638742436 has 24 divisors (see below), whose sum is σ = 76855757440. Its totient is φ = 10779767712.

The previous prime is 32638742417. The next prime is 32638742441. The reversal of 32638742436 is 63424783623.

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, 12475276 + ... + 12477891.

Almost surely, 2^32638742436 is an apocalyptic number.

It is an amenable number.

32638742436 is an abundant number, since it is smaller than the sum of its proper divisors (44217015004).

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

32638742436 is a wasteful number, since it uses less digits than its factorization.

32638742436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24953283 (or 24953281 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 48.

The spelling of 32638742436 in words is "thirty-two billion, six hundred thirty-eight million, seven hundred forty-two thousand, four hundred thirty-six".