9163653971 has 16 divisors (see below), whose sum is σ = 9661317120. Its totient is φ = 8679927360.

The previous prime is 9163653959. The next prime is 9163653991. The reversal of 9163653971 is 1793563619.

It is a cyclic number.

It is not a de Polignac number, because 9163653971 - 2¹⁰ = 9163652947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9163653911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 415406 + ... + 436908.

It is an arithmetic number, because the mean of its divisors is an integer number (603832320).

Almost surely, 2^9163653971 is an apocalyptic number.

9163653971 is a deficient number, since it is larger than the sum of its proper divisors (497663149).

9163653971 is a wasteful number, since it uses less digits than its factorization.

9163653971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21826.

The product of its digits is 918540, while the sum is 50.

The square root of 9163653971 is about 95726.9761927117. The cubic root of 9163653971 is about 2092.6160910266.

The spelling of 9163653971 in words is "nine billion, one hundred sixty-three million, six hundred fifty-three thousand, nine hundred seventy-one".