674656435601 has 2 divisors, whose sum is σ = 674656435602. Its totient is φ = 674656435600.

The previous prime is 674656435597. The next prime is 674656435627. The reversal of 674656435601 is 106534656476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 405839073025 + 268817362576 = 637055^2 + 518476^2 .

It is a cyclic number.

It is not a de Polignac number, because 674656435601 - 2² = 674656435597 is a prime.

It is a super-2 number, since 2×674656435601² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (674656435681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337328217800 + 337328217801.

It is an arithmetic number, because the mean of its divisors is an integer number (337328217801).

Almost surely, 2^674656435601 is an apocalyptic number.

It is an amenable number.

674656435601 is a deficient number, since it is larger than the sum of its proper divisors (1).

674656435601 is an equidigital number, since it uses as much as digits as its factorization.

674656435601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10886400, while the sum is 53.

The spelling of 674656435601 in words is "six hundred seventy-four billion, six hundred fifty-six million, four hundred thirty-five thousand, six hundred one".