9967951371 has 24 divisors (see below), whose sum is σ = 15520712400. Its totient is φ = 5673787392.

The previous prime is 9967951363. The next prime is 9967951387. The reversal of 9967951371 is 1731597699.

It is not a de Polignac number, because 9967951371 - 2³ = 9967951363 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9967951471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 94146 + ... + 169703.

It is an arithmetic number, because the mean of its divisors is an integer number (646696350).

Almost surely, 2^9967951371 is an apocalyptic number.

9967951371 is a deficient number, since it is larger than the sum of its proper divisors (5552761029).

9967951371 is a wasteful number, since it uses less digits than its factorization.

9967951371 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264123 (or 264116 counting only the distinct ones).

The product of its digits is 3214890, while the sum is 57.

The square root of 9967951371 is about 99839.6282595243. The cubic root of 9967951371 is about 2152.1306709849.

The spelling of 9967951371 in words is "nine billion, nine hundred sixty-seven million, nine hundred fifty-one thousand, three hundred seventy-one".