11992510464 has 312 divisors, whose sum is σ = 37176393408. Its totient is φ = 3409182720.

The previous prime is 11992510423. The next prime is 11992510471. The reversal of 11992510464 is 46401529911.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39063399 + ... + 39063705.

Almost surely, 2^11992510464 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 11992510464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18588196704).

11992510464 is an abundant number, since it is smaller than the sum of its proper divisors (25183882944).

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

11992510464 is a wasteful number, since it uses less digits than its factorization.

11992510464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 42.

The spelling of 11992510464 in words is "eleven billion, nine hundred ninety-two million, five hundred ten thousand, four hundred sixty-four".