718813400085 has 192 divisors, whose sum is σ = 1483544125440. Its totient is φ = 318085056000.

The previous prime is 718813399999. The next prime is 718813400089. The reversal of 718813400085 is 580004318817.

It is a happy number.

It is not a de Polignac number, because 718813400085 - 2¹⁶ = 718813334549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 718813400085.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (718813400089) 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 191 ways as a sum of consecutive naturals, for example, 66177555 + ... + 66188415.

It is an arithmetic number, because the mean of its divisors is an integer number (7726792320).

Almost surely, 2^718813400085 is an apocalyptic number.

It is an amenable number.

718813400085 is an abundant number, since it is smaller than the sum of its proper divisors (764730725355).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

718813400085 is a wasteful number, since it uses less digits than its factorization.

718813400085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11160 (or 11157 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 718813400085 in words is "seven hundred eighteen billion, eight hundred thirteen million, four hundred thousand, eighty-five".