671044601677139 has 2 divisors, whose sum is σ = 671044601677140. Its totient is φ = 671044601677138.

The previous prime is 671044601677133. The next prime is 671044601677211. The reversal of 671044601677139 is 931776106440176.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-671044601677139 is a prime.

It is a super-2 number, since 2×671044601677139² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (671044601677133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335522300838569 + 335522300838570.

It is an arithmetic number, because the mean of its divisors is an integer number (335522300838570).

Almost surely, 2^{671044601677139} is an apocalyptic number.

671044601677139 is a deficient number, since it is larger than the sum of its proper divisors (1).

671044601677139 is an equidigital number, since it uses as much as digits as its factorization.

671044601677139 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 671044601677139 in words is "six hundred seventy-one trillion, forty-four billion, six hundred one million, six hundred seventy-seven thousand, one hundred thirty-nine".