11978374732 has 6 divisors (see below), whose sum is σ = 20962155788. Its totient is φ = 5989187364.

The previous prime is 11978374691. The next prime is 11978374747. The reversal of 11978374732 is 23747387911.

It is a super-2 number, since 2×11978374732² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 11978374732.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1497296838 + ... + 1497296845.

Almost surely, 2^11978374732 is an apocalyptic number.

It is an amenable number.

11978374732 is a deficient number, since it is larger than the sum of its proper divisors (8983781056).

11978374732 is a wasteful number, since it uses less digits than its factorization.

11978374732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2994593687 (or 2994593685 counting only the distinct ones).

The product of its digits is 1778112, while the sum is 52.

The spelling of 11978374732 in words is "eleven billion, nine hundred seventy-eight million, three hundred seventy-four thousand, seven hundred thirty-two".