716685371947 has 2 divisors, whose sum is σ = 716685371948. Its totient is φ = 716685371946.

The previous prime is 716685371881. The next prime is 716685371951. The reversal of 716685371947 is 749173586617.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 716685371947 - 2⁷ = 716685371819 is a prime.

It is not a weakly prime, because it can be changed into another prime (716685378947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358342685973 + 358342685974.

It is an arithmetic number, because the mean of its divisors is an integer number (358342685974).

Almost surely, 2^716685371947 is an apocalyptic number.

716685371947 is a deficient number, since it is larger than the sum of its proper divisors (1).

716685371947 is an equidigital number, since it uses as much as digits as its factorization.

716685371947 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53343360, while the sum is 64.

The spelling of 716685371947 in words is "seven hundred sixteen billion, six hundred eighty-five million, three hundred seventy-one thousand, nine hundred forty-seven".