11617523880 has 32 divisors (see below), whose sum is σ = 34852572000. Its totient is φ = 3098006336.

The previous prime is 11617523867. The next prime is 11617523909. The reversal of 11617523880 is 8832571611.

It is a super-2 number, since 2×11617523880² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 48406230 + ... + 48406469.

It is an arithmetic number, because the mean of its divisors is an integer number (1089142875).

Almost surely, 2^11617523880 is an apocalyptic number.

11617523880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11617523880 is an abundant number, since it is smaller than the sum of its proper divisors (23235048120).

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

11617523880 is a wasteful number, since it uses less digits than its factorization.

11617523880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96812713 (or 96812709 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 42.

The spelling of 11617523880 in words is "eleven billion, six hundred seventeen million, five hundred twenty-three thousand, eight hundred eighty".