2164264824779 has 2 divisors, whose sum is σ = 2164264824780. Its totient is φ = 2164264824778.

The previous prime is 2164264824661. The next prime is 2164264824871. The reversal of 2164264824779 is 9774284624612.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2164264824779 - 2²⁰ = 2164263776203 is a prime.

It is not a weakly prime, because it can be changed into another prime (2164264821779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1082132412389 + 1082132412390.

It is an arithmetic number, because the mean of its divisors is an integer number (1082132412390).

Almost surely, 2^{2164264824779} is an apocalyptic number.

2164264824779 is a deficient number, since it is larger than the sum of its proper divisors (1).

2164264824779 is an equidigital number, since it uses as much as digits as its factorization.

2164264824779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65028096, while the sum is 62.

The spelling of 2164264824779 in words is "two trillion, one hundred sixty-four billion, two hundred sixty-four million, eight hundred twenty-four thousand, seven hundred seventy-nine".