716681545049 has 2 divisors, whose sum is σ = 716681545050. Its totient is φ = 716681545048.

The previous prime is 716681545043. The next prime is 716681545057. The reversal of 716681545049 is 940545186617.

716681545049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689996035600 + 26685509449 = 830660^2 + 163357^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-716681545049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 716681544985 and 716681545003.

It is not a weakly prime, because it can be changed into another prime (716681545043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358340772524 + 358340772525.

It is an arithmetic number, because the mean of its divisors is an integer number (358340772525).

Almost surely, 2^716681545049 is an apocalyptic number.

It is an amenable number.

716681545049 is a deficient number, since it is larger than the sum of its proper divisors (1).

716681545049 is an equidigital number, since it uses as much as digits as its factorization.

716681545049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7257600, while the sum is 56.

The spelling of 716681545049 in words is "seven hundred sixteen billion, six hundred eighty-one million, five hundred forty-five thousand, forty-nine".