674533689989 has 2 divisors, whose sum is σ = 674533689990. Its totient is φ = 674533689988.

The previous prime is 674533689971. The next prime is 674533690057. The reversal of 674533689989 is 989986335476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 512595857764 + 161937832225 = 715958^2 + 402415^2 .

It is a cyclic number.

It is not a de Polignac number, because 674533689989 - 2³⁶ = 605814213253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (674533689589) 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, 337266844994 + 337266844995.

It is an arithmetic number, because the mean of its divisors is an integer number (337266844995).

Almost surely, 2^674533689989 is an apocalyptic number.

It is an amenable number.

674533689989 is a deficient number, since it is larger than the sum of its proper divisors (1).

674533689989 is an equidigital number, since it uses as much as digits as its factorization.

674533689989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2116316160, while the sum is 77.

The spelling of 674533689989 in words is "six hundred seventy-four billion, five hundred thirty-three million, six hundred eighty-nine thousand, nine hundred eighty-nine".