674436879989 has 2 divisors, whose sum is σ = 674436879990. Its totient is φ = 674436879988.

The previous prime is 674436879913. The next prime is 674436880009. The reversal of 674436879989 is 989978634476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 392308059025 + 282128820964 = 626345^2 + 531158^2 .

It is a cyclic number.

It is not a de Polignac number, because 674436879989 - 2⁸ = 674436879733 is a prime.

It is a super-3 number, since 3×674436879989³ (a number of 36 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674436879289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337218439994 + 337218439995.

It is an arithmetic number, because the mean of its divisors is an integer number (337218439995).

Almost surely, 2^674436879989 is an apocalyptic number.

It is an amenable number.

674436879989 is a deficient number, since it is larger than the sum of its proper divisors (1).

674436879989 is an equidigital number, since it uses as much as digits as its factorization.

674436879989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3950456832, while the sum is 80.

The spelling of 674436879989 in words is "six hundred seventy-four billion, four hundred thirty-six million, eight hundred seventy-nine thousand, nine hundred eighty-nine".