718663008889 has 8 divisors (see below), whose sum is σ = 836825929920. Its totient is φ = 604374282096.

The previous prime is 718663008887. The next prime is 718663008893. The reversal of 718663008889 is 988800366817.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 718663008889 - 2¹ = 718663008887 is a prime.

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 718663008889.

It is not an unprimeable number, because it can be changed into a prime (718663008881) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968548159 + ... + 968548900.

It is an arithmetic number, because the mean of its divisors is an integer number (104603241240).

Almost surely, 2^718663008889 is an apocalyptic number.

It is an amenable number.

718663008889 is a deficient number, since it is larger than the sum of its proper divisors (118162921031).

718663008889 is a wasteful number, since it uses less digits than its factorization.

718663008889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1937097119.

The product of its (nonzero) digits is 27869184, while the sum is 64.

The spelling of 718663008889 in words is "seven hundred eighteen billion, six hundred sixty-three million, eight thousand, eight hundred eighty-nine".