674252522561 has 2 divisors, whose sum is σ = 674252522562. Its totient is φ = 674252522560.

The previous prime is 674252522543. The next prime is 674252522611. The reversal of 674252522561 is 165225252476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 576232810000 + 98019712561 = 759100^2 + 313081^2 .

It is a cyclic number.

It is not a de Polignac number, because 674252522561 - 2¹⁴ = 674252506177 is a prime.

It is not a weakly prime, because it can be changed into another prime (674252522161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337126261280 + 337126261281.

It is an arithmetic number, because the mean of its divisors is an integer number (337126261281).

Almost surely, 2^674252522561 is an apocalyptic number.

It is an amenable number.

674252522561 is a deficient number, since it is larger than the sum of its proper divisors (1).

674252522561 is an equidigital number, since it uses as much as digits as its factorization.

674252522561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2016000, while the sum is 47.

The spelling of 674252522561 in words is "six hundred seventy-four billion, two hundred fifty-two million, five hundred twenty-two thousand, five hundred sixty-one".