11617763172 has 12 divisors (see below), whose sum is σ = 27108114096. Its totient is φ = 3872587720.

The previous prime is 11617763141. The next prime is 11617763173. The reversal of 11617763172 is 27136771611.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×11617763172² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11617763173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 484073454 + ... + 484073477.

It is an arithmetic number, because the mean of its divisors is an integer number (2259009508).

Almost surely, 2^11617763172 is an apocalyptic number.

11617763172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11617763172 is an abundant number, since it is smaller than the sum of its proper divisors (15490350924).

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

11617763172 is a wasteful number, since it uses less digits than its factorization.

11617763172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 968146938 (or 968146936 counting only the distinct ones).

The product of its digits is 74088, while the sum is 42.

The spelling of 11617763172 in words is "eleven billion, six hundred seventeen million, seven hundred sixty-three thousand, one hundred seventy-two".