11879597520 has 240 divisors, whose sum is σ = 47577883392. Its totient is φ = 2597253120.

The previous prime is 11879597503. The next prime is 11879597533. The reversal of 11879597520 is 2579597811.

It is a tau number, because it is divible by the number of its divisors (240).

It is a super-2 number, since 2×11879597520² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64680 + ... + 167160.

Almost surely, 2^11879597520 is an apocalyptic number.

11879597520 is a gapful number since it is divisible by the number (10) 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 11879597520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23788941696).

11879597520 is an abundant number, since it is smaller than the sum of its proper divisors (35698285872).

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

11879597520 is a wasteful number, since it uses less digits than its factorization.

11879597520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102530 (or 102521 counting only the distinct ones).

The product of its (nonzero) digits is 1587600, while the sum is 54.

The spelling of 11879597520 in words is "eleven billion, eight hundred seventy-nine million, five hundred ninety-seven thousand, five hundred twenty".