674723740356779 has 2 divisors, whose sum is σ = 674723740356780. Its totient is φ = 674723740356778.

The previous prime is 674723740356703. The next prime is 674723740356857. The reversal of 674723740356779 is 977653047327476.

674723740356779 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674723740356779 is a prime.

It is a super-2 number, since 2×674723740356779² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (674723740316779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337361870178389 + 337361870178390.

It is an arithmetic number, because the mean of its divisors is an integer number (337361870178390).

Almost surely, 2^{674723740356779} is an apocalyptic number.

674723740356779 is a deficient number, since it is larger than the sum of its proper divisors (1).

674723740356779 is an equidigital number, since it uses as much as digits as its factorization.

674723740356779 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7841473920, while the sum is 77.

The spelling of 674723740356779 in words is "six hundred seventy-four trillion, seven hundred twenty-three billion, seven hundred forty million, three hundred fifty-six thousand, seven hundred seventy-nine".