671345033239 has 2 divisors, whose sum is σ = 671345033240. Its totient is φ = 671345033238.

The previous prime is 671345033197. The next prime is 671345033273. The reversal of 671345033239 is 932330543176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671345033239 - 2⁷ = 671345033111 is a prime.

It is a super-2 number, since 2×671345033239² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671345033539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335672516619 + 335672516620.

It is an arithmetic number, because the mean of its divisors is an integer number (335672516620).

Almost surely, 2^671345033239 is an apocalyptic number.

671345033239 is a deficient number, since it is larger than the sum of its proper divisors (1).

671345033239 is an equidigital number, since it uses as much as digits as its factorization.

671345033239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1224720, while the sum is 46.

The spelling of 671345033239 in words is "six hundred seventy-one billion, three hundred forty-five million, thirty-three thousand, two hundred thirty-nine".