674127999949 has 2 divisors, whose sum is σ = 674127999950. Its totient is φ = 674127999948.

The previous prime is 674127999917. The next prime is 674127999959. The reversal of 674127999949 is 949999721476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 457361401225 + 216766598724 = 676285^2 + 465582^2 .

It is a cyclic number.

It is not a de Polignac number, because 674127999949 - 2⁵ = 674127999917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674127999959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337063999974 + 337063999975.

It is an arithmetic number, because the mean of its divisors is an integer number (337063999975).

Almost surely, 2^674127999949 is an apocalyptic number.

It is an amenable number.

674127999949 is a deficient number, since it is larger than the sum of its proper divisors (1).

674127999949 is an equidigital number, since it uses as much as digits as its factorization.

674127999949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 555532992, while the sum is 76.

The spelling of 674127999949 in words is "six hundred seventy-four billion, one hundred twenty-seven million, nine hundred ninety-nine thousand, nine hundred forty-nine".