724516358261 has 2 divisors, whose sum is σ = 724516358262. Its totient is φ = 724516358260.

The previous prime is 724516358257. The next prime is 724516358281. The reversal of 724516358261 is 162853615427.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 534850882225 + 189665476036 = 731335^2 + 435506^2 .

It is a cyclic number.

It is not a de Polignac number, because 724516358261 - 2² = 724516358257 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (724516358281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 362258179130 + 362258179131.

It is an arithmetic number, because the mean of its divisors is an integer number (362258179131).

Almost surely, 2^724516358261 is an apocalyptic number.

It is an amenable number.

724516358261 is a deficient number, since it is larger than the sum of its proper divisors (1).

724516358261 is an equidigital number, since it uses as much as digits as its factorization.

724516358261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2419200, while the sum is 50.

The spelling of 724516358261 in words is "seven hundred twenty-four billion, five hundred sixteen million, three hundred fifty-eight thousand, two hundred sixty-one".