718670497680 has 480 divisors, whose sum is σ = 2589512260608. Its totient is φ = 185043916800.

The previous prime is 718670497661. The next prime is 718670497681. The reversal of 718670497680 is 86794076817.

718670497680 is a `hidden beast` number, since 7 + 1 + 8 + 67 + 0 + 497 + 6 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (718670497681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 335669410 + ... + 335671550.

Almost surely, 2^718670497680 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 718670497680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1294756130304).

718670497680 is an abundant number, since it is smaller than the sum of its proper divisors (1870841762928).

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

718670497680 is a wasteful number, since it uses less digits than its factorization.

718670497680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2757 (or 2739 counting only the distinct ones).

The product of its (nonzero) digits is 28449792, while the sum is 63.

The spelling of 718670497680 in words is "seven hundred eighteen billion, six hundred seventy million, four hundred ninety-seven thousand, six hundred eighty".