11279918976 has 64 divisors (see below), whose sum is σ = 30035960400. Its totient is φ = 3750727680.

The previous prime is 11279918959. The next prime is 11279918983. The reversal of 11279918976 is 67981997211.

It is a tau number, because it is divible by the number of its divisors (64).

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, 121146 + ... + 192966.

Almost surely, 2^11279918976 is an apocalyptic number.

11279918976 is a gapful number since it is divisible by the number (16) 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 11279918976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15017980200).

11279918976 is an abundant number, since it is smaller than the sum of its proper divisors (18756041424).

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

11279918976 is an equidigital number, since it uses as much as digits as its factorization.

11279918976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72247 (or 72235 counting only the distinct ones).

The product of its digits is 3429216, while the sum is 60.

The spelling of 11279918976 in words is "eleven billion, two hundred seventy-nine million, nine hundred eighteen thousand, nine hundred seventy-six".