718655418241 has 2 divisors, whose sum is σ = 718655418242. Its totient is φ = 718655418240.

The previous prime is 718655418233. The next prime is 718655418263. The reversal of 718655418241 is 142814556817.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 448894640016 + 269760778225 = 669996^2 + 519385^2 .

It is a cyclic number.

It is not a de Polignac number, because 718655418241 - 2³ = 718655418233 is a prime.

It is a super-2 number, since 2×718655418241² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (718655418841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359327709120 + 359327709121.

It is an arithmetic number, because the mean of its divisors is an integer number (359327709121).

Almost surely, 2^718655418241 is an apocalyptic number.

It is an amenable number.

718655418241 is a deficient number, since it is larger than the sum of its proper divisors (1).

718655418241 is an equidigital number, since it uses as much as digits as its factorization.

718655418241 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2150400, while the sum is 52.

The spelling of 718655418241 in words is "seven hundred eighteen billion, six hundred fifty-five million, four hundred eighteen thousand, two hundred forty-one".