9951026872 has 32 divisors (see below), whose sum is σ = 19414728000. Its totient is φ = 4777761664.

The previous prime is 9951026831. The next prime is 9951026903. The reversal of 9951026872 is 2786201599.

It is a super-2 number, since 2×9951026872² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 229747 + ... + 269602.

It is an arithmetic number, because the mean of its divisors is an integer number (606710250).

Almost surely, 2^9951026872 is an apocalyptic number.

It is an amenable number.

9951026872 is a deficient number, since it is larger than the sum of its proper divisors (9463701128).

9951026872 is a wasteful number, since it uses less digits than its factorization.

9951026872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499455 (or 499451 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 9951026872 is about 99754.8338277399. The cubic root of 9951026872 is about 2150.9119529149.

The spelling of 9951026872 in words is "nine billion, nine hundred fifty-one million, twenty-six thousand, eight hundred seventy-two".