674677365497 has 2 divisors, whose sum is σ = 674677365498. Its totient is φ = 674677365496.

The previous prime is 674677365493. The next prime is 674677365553. The reversal of 674677365497 is 794563776476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 611979208681 + 62698156816 = 782291^2 + 250396^2 .

It is a cyclic number.

It is not a de Polignac number, because 674677365497 - 2² = 674677365493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 674677365497.

It is not a weakly prime, because it can be changed into another prime (674677365493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337338682748 + 337338682749.

It is an arithmetic number, because the mean of its divisors is an integer number (337338682749).

Almost surely, 2^674677365497 is an apocalyptic number.

It is an amenable number.

674677365497 is a deficient number, since it is larger than the sum of its proper divisors (1).

674677365497 is an equidigital number, since it uses as much as digits as its factorization.

674677365497 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1120210560, while the sum is 71.

The spelling of 674677365497 in words is "six hundred seventy-four billion, six hundred seventy-seven million, three hundred sixty-five thousand, four hundred ninety-seven".