2641636279 has 2 divisors, whose sum is σ = 2641636280. Its totient is φ = 2641636278.

The previous prime is 2641636259. The next prime is 2641636337. The reversal of 2641636279 is 9726361462.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2641636279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2641636219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320818139 + 1320818140.

It is an arithmetic number, because the mean of its divisors is an integer number (1320818140).

Almost surely, 2^2641636279 is an apocalyptic number.

2641636279 is a deficient number, since it is larger than the sum of its proper divisors (1).

2641636279 is an equidigital number, since it uses as much as digits as its factorization.

2641636279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 653184, while the sum is 46.

The square root of 2641636279 is about 51396.8508665657. The cubic root of 2641636279 is about 1382.3701269391.

The spelling of 2641636279 in words is "two billion, six hundred forty-one million, six hundred thirty-six thousand, two hundred seventy-nine".