11979514512 has 180 divisors, whose sum is σ = 40258423296. Its totient is φ = 3312247680.

The previous prime is 11979514493. The next prime is 11979514513. The reversal of 11979514512 is 21541597911.

11979514512 is a `hidden beast` number, since 1 + 19 + 79 + 51 + 4 + 512 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (11979514513) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 191353 + ... + 246119.

Almost surely, 2^11979514512 is an apocalyptic number.

11979514512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11979514512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20129211648).

11979514512 is an abundant number, since it is smaller than the sum of its proper divisors (28278908784).

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

11979514512 is a wasteful number, since it uses less digits than its factorization.

11979514512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54826 (or 54810 counting only the distinct ones).

The product of its digits is 113400, while the sum is 45.

The spelling of 11979514512 in words is "eleven billion, nine hundred seventy-nine million, five hundred fourteen thousand, five hundred twelve".