11974623278 has 16 divisors (see below), whose sum is σ = 18113293440. Its totient is φ = 5936931000.

The previous prime is 11974623253. The next prime is 11974623343. The reversal of 11974623278 is 87232647911.

It is a congruent number.

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, 328253 + ... + 362903.

It is an arithmetic number, because the mean of its divisors is an integer number (1132080840).

Almost surely, 2^11974623278 is an apocalyptic number.

11974623278 is a deficient number, since it is larger than the sum of its proper divisors (6138670162).

11974623278 is a wasteful number, since it uses less digits than its factorization.

11974623278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36103.

The product of its digits is 1016064, while the sum is 50.

The spelling of 11974623278 in words is "eleven billion, nine hundred seventy-four million, six hundred twenty-three thousand, two hundred seventy-eight".