11993239732 has 12 divisors (see below), whose sum is σ = 20989067680. Its totient is φ = 5996363256.

The previous prime is 11993239703. The next prime is 11993239799. The reversal of 11993239732 is 23793239911.

It is a happy number.

It is a congruent number.

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, 74119 + ... + 171697.

Almost surely, 2^11993239732 is an apocalyptic number.

It is an amenable number.

11993239732 is a deficient number, since it is larger than the sum of its proper divisors (8995827948).

11993239732 is a wasteful number, since it uses less digits than its factorization.

11993239732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128310 (or 128308 counting only the distinct ones).

The product of its digits is 551124, while the sum is 49.

The spelling of 11993239732 in words is "eleven billion, nine hundred ninety-three million, two hundred thirty-nine thousand, seven hundred thirty-two".