718842811 has 2 divisors, whose sum is σ = 718842812. Its totient is φ = 718842810.

The previous prime is 718842781. The next prime is 718842821. The reversal of 718842811 is 118248817.

It is a strong prime.

It is an emirp because it is prime and its reverse (118248817) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 718842811 - 2¹⁷ = 718711739 is a prime.

It is not a weakly prime, because it can be changed into another prime (718842821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359421405 + 359421406.

It is an arithmetic number, because the mean of its divisors is an integer number (359421406).

Almost surely, 2^718842811 is an apocalyptic number.

718842811 is a deficient number, since it is larger than the sum of its proper divisors (1).

718842811 is an equidigital number, since it uses as much as digits as its factorization.

718842811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28672, while the sum is 40.

The square root of 718842811 is about 26811.2441151096. The cubic root of 718842811 is about 895.8005221822.

The spelling of 718842811 in words is "seven hundred eighteen million, eight hundred forty-two thousand, eight hundred eleven".