9923708951 has 16 divisors (see below), whose sum is σ = 10871132160. Its totient is φ = 9003627360.

The previous prime is 9923708941. The next prime is 9923708999. The reversal of 9923708951 is 1598073299.

It is a de Polignac number, because none of the positive numbers 2^k-9923708951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9923708893 and 9923708902.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9923708941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 207356 + ... + 250686.

It is an arithmetic number, because the mean of its divisors is an integer number (679445760).

Almost surely, 2^9923708951 is an apocalyptic number.

9923708951 is a deficient number, since it is larger than the sum of its proper divisors (947423209).

9923708951 is a wasteful number, since it uses less digits than its factorization.

9923708951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43646.

The product of its (nonzero) digits is 1224720, while the sum is 53.

The square root of 9923708951 is about 99617.8144259349. The cubic root of 9923708951 is about 2148.9418951401.

The spelling of 9923708951 in words is "nine billion, nine hundred twenty-three million, seven hundred eight thousand, nine hundred fifty-one".