717382081512 has 96 divisors (see below), whose sum is σ = 1987840508160. Its totient is φ = 233649360000.

The previous prime is 717382081421. The next prime is 717382081531. The reversal of 717382081512 is 215180283717.

717382081512 is a `hidden beast` number, since 7 + 1 + 7 + 38 + 20 + 81 + 512 = 666.

It is a super-2 number, since 2×717382081512² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122337 + ... + 1204047.

It is an arithmetic number, because the mean of its divisors is an integer number (20706671960).

Almost surely, 2^717382081512 is an apocalyptic number.

717382081512 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 717382081512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (993920254080).

717382081512 is an abundant number, since it is smaller than the sum of its proper divisors (1270458426648).

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

717382081512 is a wasteful number, since it uses less digits than its factorization.

717382081512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081935 (or 1081928 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 45.

The spelling of 717382081512 in words is "seven hundred seventeen billion, three hundred eighty-two million, eighty-one thousand, five hundred twelve".