318449728716720 has 160 divisors (see below), whose sum is σ = 988378675882752. Its totient is φ = 84818086419456.

The previous prime is 318449728716689. The next prime is 318449728716733. The reversal of 318449728716720 is 27617827944813.

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, 780871107 + ... + 781278813.

Almost surely, 2^{318449728716720} is an apocalyptic number.

318449728716720 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

318449728716720 is an abundant number, since it is smaller than the sum of its proper divisors (669928947166032).

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

318449728716720 is a wasteful number, since it uses less digits than its factorization.

318449728716720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411619 (or 411613 counting only the distinct ones).

The product of its (nonzero) digits is 227598336, while the sum is 69.

The spelling of 318449728716720 in words is "three hundred eighteen trillion, four hundred forty-nine billion, seven hundred twenty-eight million, seven hundred sixteen thousand, seven hundred twenty".