11987513376 has 192 divisors, whose sum is σ = 33214624128. Its totient is φ = 3781582848.

The previous prime is 11987513371. The next prime is 11987513389. The reversal of 11987513376 is 67331578911.

It is not an unprimeable number, because it can be changed into a prime (11987513371) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21521290 + ... + 21521846.

It is an arithmetic number, because the mean of its divisors is an integer number (172992834).

Almost surely, 2^11987513376 is an apocalyptic number.

11987513376 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 11987513376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16607312064).

11987513376 is an abundant number, since it is smaller than the sum of its proper divisors (21227110752).

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

11987513376 is a wasteful number, since it uses less digits than its factorization.

11987513376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763 (or 755 counting only the distinct ones).

The product of its digits is 952560, while the sum is 51.

The spelling of 11987513376 in words is "eleven billion, nine hundred eighty-seven million, five hundred thirteen thousand, three hundred seventy-six".