5816799921 has 4 divisors (see below), whose sum is σ = 7755733232. Its totient is φ = 3877866612.

The previous prime is 5816799899. The next prime is 5816799949. The reversal of 5816799921 is 1299976185.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 5816799921 - 2¹⁴ = 5816783537 is a prime.

It is a super-2 number, since 2×5816799921² = 67670322641891212482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5816799971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 969466651 + ... + 969466656.

It is an arithmetic number, because the mean of its divisors is an integer number (1938933308).

Almost surely, 2^5816799921 is an apocalyptic number.

It is an amenable number.

5816799921 is a deficient number, since it is larger than the sum of its proper divisors (1938933311).

5816799921 is a wasteful number, since it uses less digits than its factorization.

5816799921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1938933310.

The product of its digits is 2449440, while the sum is 57.

The square root of 5816799921 is about 76267.9481892623. The cubic root of 5816799921 is about 1798.4348453091.

The spelling of 5816799921 in words is "five billion, eight hundred sixteen million, seven hundred ninety-nine thousand, nine hundred twenty-one".