2164831679 has 2 divisors, whose sum is σ = 2164831680. Its totient is φ = 2164831678.

The previous prime is 2164831673. The next prime is 2164831681. The reversal of 2164831679 is 9761384612.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164831679 - 2²⁴ = 2148054463 is a prime.

Together with 2164831681, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2164831673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082415839 + 1082415840.

It is an arithmetic number, because the mean of its divisors is an integer number (1082415840).

Almost surely, 2^2164831679 is an apocalyptic number.

2164831679 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164831679 is an equidigital number, since it uses as much as digits as its factorization.

2164831679 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 47.

The square root of 2164831679 is about 46527.7517079861. The cubic root of 2164831679 is about 1293.6239422434.

The spelling of 2164831679 in words is "two billion, one hundred sixty-four million, eight hundred thirty-one thousand, six hundred seventy-nine".