718608248005 has 4 divisors (see below), whose sum is σ = 862329897612. Its totient is φ = 574886598400.

The previous prime is 718608247963. The next prime is 718608248047. The reversal of 718608248005 is 500842806817.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (718608247963) and next prime (718608248047).

It can be written as a sum of positive squares in 2 ways, for example, as 573330638596 + 145277609409 = 757186^2 + 381153^2 .

It is not a de Polignac number, because 718608248005 - 2²¹ = 718606150853 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 718608248005.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71860824796 + ... + 71860824805.

It is an arithmetic number, because the mean of its divisors is an integer number (215582474403).

Almost surely, 2^718608248005 is an apocalyptic number.

It is an amenable number.

718608248005 is a deficient number, since it is larger than the sum of its proper divisors (143721649607).

718608248005 is a wasteful number, since it uses less digits than its factorization.

718608248005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143721649606.

The product of its (nonzero) digits is 860160, while the sum is 49.

The spelling of 718608248005 in words is "seven hundred eighteen billion, six hundred eight million, two hundred forty-eight thousand, five".