11970977976 has 96 divisors (see below), whose sum is σ = 33591963600. Its totient is φ = 3846689280.

The previous prime is 11970977959. The next prime is 11970977981. The reversal of 11970977976 is 67977907911.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1438660 + ... + 1446956.

Almost surely, 2^11970977976 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 11970977976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16795981800).

11970977976 is an abundant number, since it is smaller than the sum of its proper divisors (21620985624).

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

11970977976 is a wasteful number, since it uses less digits than its factorization.

11970977976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9029 (or 9022 counting only the distinct ones).

The product of its (nonzero) digits is 10501974, while the sum is 63.

The spelling of 11970977976 in words is "eleven billion, nine hundred seventy million, nine hundred seventy-seven thousand, nine hundred seventy-six".