716681807173 has 2 divisors, whose sum is σ = 716681807174. Its totient is φ = 716681807172.

The previous prime is 716681807141. The next prime is 716681807207. The reversal of 716681807173 is 371708186617.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 618200070049 + 98481737124 = 786257^2 + 313818^2 .

It is a cyclic number.

It is not a de Polignac number, because 716681807173 - 2⁵ = 716681807141 is a prime.

It is a super-3 number, since 3×716681807173³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716681807773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358340903586 + 358340903587.

It is an arithmetic number, because the mean of its divisors is an integer number (358340903587).

Almost surely, 2^716681807173 is an apocalyptic number.

It is an amenable number.

716681807173 is a deficient number, since it is larger than the sum of its proper divisors (1).

716681807173 is an equidigital number, since it uses as much as digits as its factorization.

716681807173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2370816, while the sum is 55.

The spelling of 716681807173 in words is "seven hundred sixteen billion, six hundred eighty-one million, eight hundred seven thousand, one hundred seventy-three".