11977407974 has 24 divisors (see below), whose sum is σ = 20573842224. Its totient is φ = 5122908000.

The previous prime is 11977407901. The next prime is 11977407983. The reversal of 11977407974 is 47970477911.

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 11 ways as a sum of consecutive naturals, for example, 6878744 + ... + 6880484.

It is an arithmetic number, because the mean of its divisors is an integer number (857243426).

Almost surely, 2^11977407974 is an apocalyptic number.

11977407974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

11977407974 is a deficient number, since it is larger than the sum of its proper divisors (8596434250).

11977407974 is an frugal number, since it uses more digits than its factorization.

11977407974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152 (or 2451 counting only the distinct ones).

The product of its (nonzero) digits is 3111696, while the sum is 56.

The spelling of 11977407974 in words is "eleven billion, nine hundred seventy-seven million, four hundred seven thousand, nine hundred seventy-four".