9161949572963 has 4 divisors (see below), whose sum is σ = 9994854079608. Its totient is φ = 8329045066320.

The previous prime is 9161949572903. The next prime is 9161949572977. The reversal of 9161949572963 is 3692759491619.

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

It is not a de Polignac number, because 9161949572963 - 2¹⁰ = 9161949571939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9161949572903) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 416452253306 + ... + 416452253327.

It is an arithmetic number, because the mean of its divisors is an integer number (2498713519902).

Almost surely, 2^{9161949572963} is an apocalyptic number.

9161949572963 is a deficient number, since it is larger than the sum of its proper divisors (832904506645).

9161949572963 is a wasteful number, since it uses less digits than its factorization.

9161949572963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 832904506644.

The product of its digits is 198404640, while the sum is 71.

The spelling of 9161949572963 in words is "nine trillion, one hundred sixty-one billion, nine hundred forty-nine million, five hundred seventy-two thousand, nine hundred sixty-three".