674040700849 has 2 divisors, whose sum is σ = 674040700850. Its totient is φ = 674040700848.

The previous prime is 674040700819. The next prime is 674040700889. The reversal of 674040700849 is 948007040476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598407450624 + 75633250225 = 773568^2 + 275015^2 .

It is a cyclic number.

It is not a de Polignac number, because 674040700849 - 2²⁹ = 673503829937 is a prime.

It is a super-2 number, since 2×674040700849² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (674040700819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337020350424 + 337020350425.

It is an arithmetic number, because the mean of its divisors is an integer number (337020350425).

Almost surely, 2^674040700849 is an apocalyptic number.

It is an amenable number.

674040700849 is a deficient number, since it is larger than the sum of its proper divisors (1).

674040700849 is an equidigital number, since it uses as much as digits as its factorization.

674040700849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1354752, while the sum is 49.

The spelling of 674040700849 in words is "six hundred seventy-four billion, forty million, seven hundred thousand, eight hundred forty-nine".