9958790931 has 16 divisors (see below), whose sum is σ = 13488910848. Its totient is φ = 6534259200.

The previous prime is 9958790923. The next prime is 9958790969. The reversal of 9958790931 is 1390978599.

It is not a de Polignac number, because 9958790931 - 2³ = 9958790923 is a prime.

It is a super-3 number, since 3×9958790931³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (9958790911) 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, 82386 + ... + 163416.

It is an arithmetic number, because the mean of its divisors is an integer number (843056928).

Almost surely, 2^9958790931 is an apocalyptic number.

9958790931 is a deficient number, since it is larger than the sum of its proper divisors (3530119917).

9958790931 is a wasteful number, since it uses less digits than its factorization.

9958790931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81682.

The product of its (nonzero) digits is 5511240, while the sum is 60.

The square root of 9958790931 is about 99793.7419430698. The cubic root of 9958790931 is about 2151.4712072910.

The spelling of 9958790931 in words is "nine billion, nine hundred fifty-eight million, seven hundred ninety thousand, nine hundred thirty-one".