11715908512 has 96 divisors (see below), whose sum is σ = 29534682240. Its totient is φ = 4441236480.

The previous prime is 11715908507. The next prime is 11715908543. The reversal of 11715908512 is 21580951711.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26914 + ... + 155422.

It is an arithmetic number, because the mean of its divisors is an integer number (307652940).

Almost surely, 2^11715908512 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 11715908512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14767341120).

11715908512 is an abundant number, since it is smaller than the sum of its proper divisors (17818773728).

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

11715908512 is a wasteful number, since it uses less digits than its factorization.

11715908512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128574 (or 128566 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 40.

The spelling of 11715908512 in words is "eleven billion, seven hundred fifteen million, nine hundred eight thousand, five hundred twelve".