2163924863 has 4 divisors (see below), whose sum is σ = 2204753688. Its totient is φ = 2123096040.

The previous prime is 2163924857. The next prime is 2163924869. The reversal of 2163924863 is 3684293612.

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 (2163924857) and next prime (2163924869).

It is a cyclic number.

It is not a de Polignac number, because 2163924863 - 2⁶ = 2163924799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163924869) 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, 20414333 + ... + 20414438.

It is an arithmetic number, because the mean of its divisors is an integer number (551188422).

Almost surely, 2^2163924863 is an apocalyptic number.

2163924863 is a deficient number, since it is larger than the sum of its proper divisors (40828825).

2163924863 is an equidigital number, since it uses as much as digits as its factorization.

2163924863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40828824.

The product of its digits is 373248, while the sum is 44.

The square root of 2163924863 is about 46518.0057934559. The cubic root of 2163924863 is about 1293.4432903659.

The spelling of 2163924863 in words is "two billion, one hundred sixty-three million, nine hundred twenty-four thousand, eight hundred sixty-three".