674126164746642 has 64 divisors (see below), whose sum is σ = 1407376530109440. Its totient is φ = 214861706372544.

The previous prime is 674126164746641. The next prime is 674126164746649. The reversal of 674126164746642 is 246647461621476.

It is a super-2 number, since 2×674126164746642² (a number of 30 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (674126164746641) 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 in 31 ways as a sum of consecutive naturals, for example, 6308858488 + ... + 6308965340.

It is an arithmetic number, because the mean of its divisors is an integer number (21990258282960).

Almost surely, 2^{674126164746642} is an apocalyptic number.

674126164746642 is an abundant number, since it is smaller than the sum of its proper divisors (733250365362798).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

674126164746642 is a wasteful number, since it uses less digits than its factorization.

674126164746642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122847.

The product of its digits is 390168576, while the sum is 66.

The spelling of 674126164746642 in words is "six hundred seventy-four trillion, one hundred twenty-six billion, one hundred sixty-four million, seven hundred forty-six thousand, six hundred forty-two".