9951108872 has 24 divisors (see below), whose sum is σ = 19279641150. Its totient is φ = 4815048960.

The previous prime is 9951108851. The next prime is 9951108883. The reversal of 9951108872 is 2788011599.

It can be written as a sum of positive squares in only one way, i.e., 5325204676 + 4625904196 = 72974^2 + 68014^2 .

It is a super-2 number, since 2×9951108872² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9951108872.

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, 639497 + ... + 654872.

Almost surely, 2^9951108872 is an apocalyptic number.

It is an amenable number.

9951108872 is a deficient number, since it is larger than the sum of its proper divisors (9328532278).

9951108872 is a wasteful number, since it uses less digits than its factorization.

9951108872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294437 (or 1294402 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 50.

The square root of 9951108872 is about 99755.2448345449. The cubic root of 9951108872 is about 2150.9178609917.

The spelling of 9951108872 in words is "nine billion, nine hundred fifty-one million, one hundred eight thousand, eight hundred seventy-two".