77422320959 has 2 divisors, whose sum is σ = 77422320960. Its totient is φ = 77422320958.

The previous prime is 77422320953. The next prime is 77422320961. The reversal of 77422320959 is 95902322477.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77422320959 is a prime.

Together with 77422320961, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77422320953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38711160479 + 38711160480.

It is an arithmetic number, because the mean of its divisors is an integer number (38711160480).

Almost surely, 2^77422320959 is an apocalyptic number.

77422320959 is a deficient number, since it is larger than the sum of its proper divisors (1).

77422320959 is an equidigital number, since it uses as much as digits as its factorization.

77422320959 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 50.

The spelling of 77422320959 in words is "seventy-seven billion, four hundred twenty-two million, three hundred twenty thousand, nine hundred fifty-nine".