674791353893 has 2 divisors, whose sum is σ = 674791353894. Its totient is φ = 674791353892.

The previous prime is 674791353827. The next prime is 674791353919. The reversal of 674791353893 is 398353197476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 530541794689 + 144249559204 = 728383^2 + 379802^2 .

It is a cyclic number.

It is not a de Polignac number, because 674791353893 - 2⁸ = 674791353637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674791353193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337395676946 + 337395676947.

It is an arithmetic number, because the mean of its divisors is an integer number (337395676947).

Almost surely, 2^674791353893 is an apocalyptic number.

It is an amenable number.

674791353893 is a deficient number, since it is larger than the sum of its proper divisors (1).

674791353893 is an equidigital number, since it uses as much as digits as its factorization.

674791353893 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 102876480, while the sum is 65.

The spelling of 674791353893 in words is "six hundred seventy-four billion, seven hundred ninety-one million, three hundred fifty-three thousand, eight hundred ninety-three".