718661422741 has 2 divisors, whose sum is σ = 718661422742. Its totient is φ = 718661422740.

The previous prime is 718661422727. The next prime is 718661422747. The reversal of 718661422741 is 147224166817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 518364000625 + 200297422116 = 719975^2 + 447546^2 .

It is a cyclic number.

It is not a de Polignac number, because 718661422741 - 2²³ = 718653034133 is a prime.

It is a super-2 number, since 2×718661422741² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (718661422747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359330711370 + 359330711371.

It is an arithmetic number, because the mean of its divisors is an integer number (359330711371).

Almost surely, 2^718661422741 is an apocalyptic number.

It is an amenable number.

718661422741 is a deficient number, since it is larger than the sum of its proper divisors (1).

718661422741 is an equidigital number, since it uses as much as digits as its factorization.

718661422741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 903168, while the sum is 49.

The spelling of 718661422741 in words is "seven hundred eighteen billion, six hundred sixty-one million, four hundred twenty-two thousand, seven hundred forty-one".