2164731799 has 2 divisors, whose sum is σ = 2164731800. Its totient is φ = 2164731798.

The previous prime is 2164731787. The next prime is 2164731913. The reversal of 2164731799 is 9971374612.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2164731799 - 2²³ = 2156343191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164731719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082365899 + 1082365900.

It is an arithmetic number, because the mean of its divisors is an integer number (1082365900).

Almost surely, 2^2164731799 is an apocalyptic number.

2164731799 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164731799 is an equidigital number, since it uses as much as digits as its factorization.

2164731799 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 2164731799 is about 46526.6783576907. The cubic root of 2164731799 is about 1293.6040470636.

The spelling of 2164731799 in words is "two billion, one hundred sixty-four million, seven hundred thirty-one thousand, seven hundred ninety-nine".