11979194368 has 38 divisors (see below), whose sum is σ = 23958867326. Its totient is φ = 5989466112.

The previous prime is 11979194329. The next prime is 11979194389. The reversal of 11979194368 is 86349197911.

It can be written as a sum of positive squares in only one way, i.e., 9563275264 + 2415919104 = 97792^2 + 49152^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239296 + ... + 284992.

Almost surely, 2^11979194368 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11979194368, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11979433663).

11979194368 is an abundant number, since it is smaller than the sum of its proper divisors (11979672958).

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

11979194368 is an frugal number, since it uses more digits than its factorization.

11979194368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45733 (or 45699 counting only the distinct ones).

The product of its digits is 2939328, while the sum is 58.

The spelling of 11979194368 in words is "eleven billion, nine hundred seventy-nine million, one hundred ninety-four thousand, three hundred sixty-eight".