674514543722557 has 2 divisors, whose sum is σ = 674514543722558. Its totient is φ = 674514543722556.

The previous prime is 674514543722473. The next prime is 674514543722563. The reversal of 674514543722557 is 755227345415476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 657214442805636 + 17300100916921 = 25636194^2 + 4159339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-674514543722557 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 674514543722492 and 674514543722501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674514543762557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337257271861278 + 337257271861279.

It is an arithmetic number, because the mean of its divisors is an integer number (337257271861279).

Almost surely, 2^{674514543722557} is an apocalyptic number.

It is an amenable number.

674514543722557 is a deficient number, since it is larger than the sum of its proper divisors (1).

674514543722557 is an equidigital number, since it uses as much as digits as its factorization.

674514543722557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 987840000, while the sum is 67.

The spelling of 674514543722557 in words is "six hundred seventy-four trillion, five hundred fourteen billion, five hundred forty-three million, seven hundred twenty-two thousand, five hundred fifty-seven".