676722256439 has 2 divisors, whose sum is σ = 676722256440. Its totient is φ = 676722256438.

The previous prime is 676722256411. The next prime is 676722256447. The reversal of 676722256439 is 934652227676.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 676722256439 - 2⁸ = 676722256183 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (676722256489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338361128219 + 338361128220.

It is an arithmetic number, because the mean of its divisors is an integer number (338361128220).

Almost surely, 2^676722256439 is an apocalyptic number.

676722256439 is a deficient number, since it is larger than the sum of its proper divisors (1).

676722256439 is an equidigital number, since it uses as much as digits as its factorization.

676722256439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 45722880, while the sum is 59.

The spelling of 676722256439 in words is "six hundred seventy-six billion, seven hundred twenty-two million, two hundred fifty-six thousand, four hundred thirty-nine".