718606000081 has 4 divisors (see below), whose sum is σ = 718612347712. Its totient is φ = 718599652452.

The previous prime is 718606000069. The next prime is 718606000097. The reversal of 718606000081 is 180000606817.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 718606000081 - 2⁹ = 718605999569 is a prime.

It is a super-2 number, since 2×718606000081² (a number of 25 digits) contains 22 as substring.

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 718606000081.

It is not an unprimeable number, because it can be changed into a prime (718606000001) by changing a digit.

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, 3000861 + ... + 3231466.

It is an arithmetic number, because the mean of its divisors is an integer number (179653086928).

Almost surely, 2^718606000081 is an apocalyptic number.

It is an amenable number.

718606000081 is a deficient number, since it is larger than the sum of its proper divisors (6347631).

718606000081 is a wasteful number, since it uses less digits than its factorization.

718606000081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6347630.

The product of its (nonzero) digits is 16128, while the sum is 37.

Adding to 718606000081 its reverse (180000606817), we get a palindrome (898606606898).

The spelling of 718606000081 in words is "seven hundred eighteen billion, six hundred six million, eighty-one", and thus it is an aban number.