864981163 has 16 divisors (see below), whose sum is σ = 899078400. Its totient is φ = 831630240.

The previous prime is 864981149. The next prime is 864981193. The reversal of 864981163 is 361189468.

864981163 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-864981163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (864981133) 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, 838458 + ... + 839488.

It is an arithmetic number, because the mean of its divisors is an integer number (56192400).

Almost surely, 2^864981163 is an apocalyptic number.

864981163 is a deficient number, since it is larger than the sum of its proper divisors (34097237).

864981163 is a wasteful number, since it uses less digits than its factorization.

864981163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1362.

The product of its digits is 248832, while the sum is 46.

The square root of 864981163 is about 29410.5620993547. The cubic root of 864981163 is about 952.8010270101.

The spelling of 864981163 in words is "eight hundred sixty-four million, nine hundred eighty-one thousand, one hundred sixty-three".