5163994923 has 4 divisors (see below), whose sum is σ = 6885326568. Its totient is φ = 3442663280.

The previous prime is 5163994907. The next prime is 5163994943. The reversal of 5163994923 is 3294993615.

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

It is a cyclic number.

It is not a de Polignac number, because 5163994923 - 2⁴ = 5163994907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5163994943) 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, 860665818 + ... + 860665823.

It is an arithmetic number, because the mean of its divisors is an integer number (1721331642).

Almost surely, 2^5163994923 is an apocalyptic number.

5163994923 is a deficient number, since it is larger than the sum of its proper divisors (1721331645).

5163994923 is a wasteful number, since it uses less digits than its factorization.

5163994923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721331644.

The product of its digits is 1574640, while the sum is 51.

The square root of 5163994923 is about 71860.9415677251. The cubic root of 5163994923 is about 1728.4703557260.

The spelling of 5163994923 in words is "five billion, one hundred sixty-three million, nine hundred ninety-four thousand, nine hundred twenty-three".