4640644082279 has 2 divisors, whose sum is σ = 4640644082280. Its totient is φ = 4640644082278.

The previous prime is 4640644082219. The next prime is 4640644082303. The reversal of 4640644082279 is 9722804460464.

It is a happy number.

4640644082279 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4640644082279 - 2²⁰ = 4640643033703 is a prime.

It is a super-2 number, since 2×4640644082279² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4640644082219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2320322041139 + 2320322041140.

It is an arithmetic number, because the mean of its divisors is an integer number (2320322041140).

Almost surely, 2^{4640644082279} is an apocalyptic number.

4640644082279 is a deficient number, since it is larger than the sum of its proper divisors (1).

4640644082279 is an equidigital number, since it uses as much as digits as its factorization.

4640644082279 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18579456, while the sum is 56.

The spelling of 4640644082279 in words is "four trillion, six hundred forty billion, six hundred forty-four million, eighty-two thousand, two hundred seventy-nine".