9117900118856 has 8 divisors (see below), whose sum is σ = 17096062722870. Its totient is φ = 4558950059424.

The previous prime is 9117900118849. The next prime is 9117900118867. The reversal of 9117900118856 is 6588110097119.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 8503347602500 + 614552516356 = 2916050^2 + 783934^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×9117900118856² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 569868757421 + ... + 569868757436.

Almost surely, 2^{9117900118856} is an apocalyptic number.

It is an amenable number.

9117900118856 is a deficient number, since it is larger than the sum of its proper divisors (7978162604014).

9117900118856 is a wasteful number, since it uses less digits than its factorization.

9117900118856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139737514863 (or 1139737514859 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 56.

The spelling of 9117900118856 in words is "nine trillion, one hundred seventeen billion, nine hundred million, one hundred eighteen thousand, eight hundred fifty-six".