718767668736 has 320 divisors, whose sum is σ = 2312739475200. Its totient is φ = 219086512128.

The previous prime is 718767668713. The next prime is 718767668747. The reversal of 718767668736 is 637866767817.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19210495 + ... + 19247873.

It is an arithmetic number, because the mean of its divisors is an integer number (7227310860).

Almost surely, 2^718767668736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 718767668736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1156369737600).

718767668736 is an abundant number, since it is smaller than the sum of its proper divisors (1593971806464).

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

718767668736 is a wasteful number, since it uses less digits than its factorization.

718767668736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37526 (or 37504 counting only the distinct ones).

The product of its digits is 597445632, while the sum is 72.

The spelling of 718767668736 in words is "seven hundred eighteen billion, seven hundred sixty-seven million, six hundred sixty-eight thousand, seven hundred thirty-six".