11979337809924 has 81 divisors (see below), whose sum is σ = 30396237525927. Its totient is φ = 3977987517648.

The previous prime is 11979337809913. The next prime is 11979337809991. The reversal of 11979337809924 is 42990873397911.

The square root of 11979337809924 is 3461118.

It is a perfect power (a square), and thus also a powerful number.

11979337809924 is a `hidden beast` number, since 1 + 197 + 9 + 337 + 80 + 9 + 9 + 24 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 6375378417 + ... + 6375380295.

Almost surely, 2^{11979337809924} is an apocalyptic number.

11979337809924 is the 3461118-th square number.

It is an amenable number.

11979337809924 is an abundant number, since it is smaller than the sum of its proper divisors (18416899716003).

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

11979337809924 is an frugal number, since it uses more digits than its factorization.

11979337809924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4382 (or 2191 counting only the distinct ones).

The product of its (nonzero) digits is 185177664, while the sum is 72.

The spelling of 11979337809924 in words is "eleven trillion, nine hundred seventy-nine billion, three hundred thirty-seven million, eight hundred nine thousand, nine hundred twenty-four".