718220611 has 2 divisors, whose sum is σ = 718220612. Its totient is φ = 718220610.

The previous prime is 718220599. The next prime is 718220621. The reversal of 718220611 is 116022817.

It is a strong prime.

It is an emirp because it is prime and its reverse (116022817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 718220611 - 2¹³ = 718212419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 718220611.

It is not a weakly prime, because it can be changed into another prime (718220621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359110305 + 359110306.

It is an arithmetic number, because the mean of its divisors is an integer number (359110306).

Almost surely, 2^718220611 is an apocalyptic number.

718220611 is a deficient number, since it is larger than the sum of its proper divisors (1).

718220611 is an equidigital number, since it uses as much as digits as its factorization.

718220611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1344, while the sum is 28.

The square root of 718220611 is about 26799.6382624841. The cubic root of 718220611 is about 895.5419918680.

The spelling of 718220611 in words is "seven hundred eighteen million, two hundred twenty thousand, six hundred eleven".