674123805697 has 2 divisors, whose sum is σ = 674123805698. Its totient is φ = 674123805696.

The previous prime is 674123805689. The next prime is 674123805731. The reversal of 674123805697 is 796508321476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 645329448976 + 28794356721 = 803324^2 + 169689^2 .

It is a cyclic number.

It is not a de Polignac number, because 674123805697 - 2³ = 674123805689 is a prime.

It is not a weakly prime, because it can be changed into another prime (674123805637) 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, 337061902848 + 337061902849.

It is an arithmetic number, because the mean of its divisors is an integer number (337061902849).

It is a 1-persistent number, because it is pandigital, but 2⋅674123805697 = 1348247611394 is not.

Almost surely, 2^674123805697 is an apocalyptic number.

It is an amenable number.

674123805697 is a deficient number, since it is larger than the sum of its proper divisors (1).

674123805697 is an equidigital number, since it uses as much as digits as its factorization.

674123805697 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15240960, while the sum is 58.

The spelling of 674123805697 in words is "six hundred seventy-four billion, one hundred twenty-three million, eight hundred five thousand, six hundred ninety-seven".