479577322691 has 2 divisors, whose sum is σ = 479577322692. Its totient is φ = 479577322690.

The previous prime is 479577322621. The next prime is 479577322729. The reversal of 479577322691 is 196223775974.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 479577322691 - 2²² = 479573128387 is a prime.

It is not a weakly prime, because it can be changed into another prime (479577322621) 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, 239788661345 + 239788661346.

It is an arithmetic number, because the mean of its divisors is an integer number (239788661346).

Almost surely, 2^479577322691 is an apocalyptic number.

479577322691 is a deficient number, since it is larger than the sum of its proper divisors (1).

479577322691 is an equidigital number, since it uses as much as digits as its factorization.

479577322691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40007520, while the sum is 62.

The spelling of 479577322691 in words is "four hundred seventy-nine billion, five hundred seventy-seven million, three hundred twenty-two thousand, six hundred ninety-one".