671149714589 has 2 divisors, whose sum is σ = 671149714590. Its totient is φ = 671149714588.

The previous prime is 671149714559. The next prime is 671149714597. The reversal of 671149714589 is 985417941176.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643913163364 + 27236551225 = 802442^2 + 165035^2 .

It is a cyclic number.

It is not a de Polignac number, because 671149714589 - 2¹² = 671149710493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671149714519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335574857294 + 335574857295.

It is an arithmetic number, because the mean of its divisors is an integer number (335574857295).

Almost surely, 2^671149714589 is an apocalyptic number.

It is an amenable number.

671149714589 is a deficient number, since it is larger than the sum of its proper divisors (1).

671149714589 is an equidigital number, since it uses as much as digits as its factorization.

671149714589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15240960, while the sum is 62.

The spelling of 671149714589 in words is "six hundred seventy-one billion, one hundred forty-nine million, seven hundred fourteen thousand, five hundred eighty-nine".