716408751647 has 2 divisors, whose sum is σ = 716408751648. Its totient is φ = 716408751646.

The previous prime is 716408751637. The next prime is 716408751701. The reversal of 716408751647 is 746157804617.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716408751647 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 716408751592 and 716408751601.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716408751637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358204375823 + 358204375824.

It is an arithmetic number, because the mean of its divisors is an integer number (358204375824).

Almost surely, 2^716408751647 is an apocalyptic number.

716408751647 is a deficient number, since it is larger than the sum of its proper divisors (1).

716408751647 is an equidigital number, since it uses as much as digits as its factorization.

716408751647 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7902720, while the sum is 56.

The spelling of 716408751647 in words is "seven hundred sixteen billion, four hundred eight million, seven hundred fifty-one thousand, six hundred forty-seven".