716391193601 has 2 divisors, whose sum is σ = 716391193602. Its totient is φ = 716391193600.

The previous prime is 716391193561. The next prime is 716391193619. The reversal of 716391193601 is 106391193617.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 701575435201 + 14815758400 = 837601^2 + 121720^2 .

It is an emirp because it is prime and its reverse (106391193617) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716391193601 is a prime.

It is not a weakly prime, because it can be changed into another prime (716391193801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358195596800 + 358195596801.

It is an arithmetic number, because the mean of its divisors is an integer number (358195596801).

Almost surely, 2^716391193601 is an apocalyptic number.

It is an amenable number.

716391193601 is a deficient number, since it is larger than the sum of its proper divisors (1).

716391193601 is an equidigital number, since it uses as much as digits as its factorization.

716391193601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 183708, while the sum is 47.

The spelling of 716391193601 in words is "seven hundred sixteen billion, three hundred ninety-one million, one hundred ninety-three thousand, six hundred one".