479581608439 has 2 divisors, whose sum is σ = 479581608440. Its totient is φ = 479581608438.

The previous prime is 479581608271. The next prime is 479581608521. The reversal of 479581608439 is 934806185974.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479581608439 - 2⁹ = 479581607927 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (479581602439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239790804219 + 239790804220.

It is an arithmetic number, because the mean of its divisors is an integer number (239790804220).

Almost surely, 2^479581608439 is an apocalyptic number.

479581608439 is a deficient number, since it is larger than the sum of its proper divisors (1).

479581608439 is an equidigital number, since it uses as much as digits as its factorization.

479581608439 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 52254720, while the sum is 64.

The spelling of 479581608439 in words is "four hundred seventy-nine billion, five hundred eighty-one million, six hundred eight thousand, four hundred thirty-nine".