671189537063 has 2 divisors, whose sum is σ = 671189537064. Its totient is φ = 671189537062.

The previous prime is 671189537027. The next prime is 671189537069. The reversal of 671189537063 is 360735981176.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 671189537063 - 2⁸ = 671189536807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (671189537069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 335594768531 + 335594768532.

It is an arithmetic number, because the mean of its divisors is an integer number (335594768532).

Almost surely, 2^671189537063 is an apocalyptic number.

671189537063 is a deficient number, since it is larger than the sum of its proper divisors (1).

671189537063 is an equidigital number, since it uses as much as digits as its factorization.

671189537063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5715360, while the sum is 56.

The spelling of 671189537063 in words is "six hundred seventy-one billion, one hundred eighty-nine million, five hundred thirty-seven thousand, sixty-three".