11979424817120 has 48 divisors (see below), whose sum is σ = 28328788802160. Its totient is φ = 4787131167744.

The previous prime is 11979424817111. The next prime is 11979424817147. The reversal of 11979424817120 is 2171842497911.

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 7 ways as a sum of consecutive naturals, for example, 36074510 + ... + 36405069.

It is an arithmetic number, because the mean of its divisors is an integer number (590183100045).

Almost surely, 2^{11979424817120} is an apocalyptic number.

11979424817120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11979424817120 is an abundant number, since it is smaller than the sum of its proper divisors (16349363985040).

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

11979424817120 is a wasteful number, since it uses less digits than its factorization.

11979424817120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72480627 (or 72480619 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 56.

The spelling of 11979424817120 in words is "eleven trillion, nine hundred seventy-nine billion, four hundred twenty-four million, eight hundred seventeen thousand, one hundred twenty".