11317617288 has 24 divisors (see below), whose sum is σ = 30651880350. Its totient is φ = 3772539072.

The previous prime is 11317617277. The next prime is 11317617301. The reversal of 11317617288 is 88271671311.

11317617288 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 7 + 617 + 28 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11307770244 + 9847044 = 106338^2 + 3138^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×11317617288² (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 5 ways as a sum of consecutive naturals, for example, 78594493 + ... + 78594636.

Almost surely, 2^11317617288 is an apocalyptic number.

11317617288 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

11317617288 is an abundant number, since it is smaller than the sum of its proper divisors (19334263062).

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

11317617288 is a wasteful number, since it uses less digits than its factorization.

11317617288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157189141 (or 157189134 counting only the distinct ones).

The product of its digits is 112896, while the sum is 45.

The spelling of 11317617288 in words is "eleven billion, three hundred seventeen million, six hundred seventeen thousand, two hundred eighty-eight".