718494329280 has 448 divisors, whose sum is σ = 2810182652928. Its totient is φ = 151457955840.

The previous prime is 718494329261. The next prime is 718494329327. The reversal of 718494329280 is 82923494817.

It is a tau number, because it is divible by the number of its divisors (448).

It is a self number, because there is not a number n which added to its sum of digits gives 718494329280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 118893939 + ... + 118899981.

It is an arithmetic number, because the mean of its divisors is an integer number (6272729136).

Almost surely, 2^718494329280 is an apocalyptic number.

718494329280 is a gapful number since it is divisible by the number (70) 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 718494329280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1405091326464).

718494329280 is an abundant number, since it is smaller than the sum of its proper divisors (2091688323648).

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

718494329280 is a wasteful number, since it uses less digits than its factorization.

718494329280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7444 (or 7434 counting only the distinct ones).

The product of its (nonzero) digits is 6967296, while the sum is 57.

The spelling of 718494329280 in words is "seven hundred eighteen billion, four hundred ninety-four million, three hundred twenty-nine thousand, two hundred eighty".