9616991374 has 4 divisors (see below), whose sum is σ = 14425487064. Its totient is φ = 4808495686.

The previous prime is 9616991359. The next prime is 9616991389. The reversal of 9616991374 is 4731996169.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (9616991359) and next prime (9616991389).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2404247842 + ... + 2404247845.

It is an arithmetic number, because the mean of its divisors is an integer number (3606371766).

Almost surely, 2^9616991374 is an apocalyptic number.

9616991374 is a deficient number, since it is larger than the sum of its proper divisors (4808495690).

9616991374 is a wasteful number, since it uses less digits than its factorization.

9616991374 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4808495689.

The product of its digits is 2204496, while the sum is 55.

The square root of 9616991374 is about 98066.2601203900. The cubic root of 9616991374 is about 2126.5702902389.

The spelling of 9616991374 in words is "nine billion, six hundred sixteen million, nine hundred ninety-one thousand, three hundred seventy-four".