19990485713328 has 60 divisors (see below), whose sum is σ = 55920130916040. Its totient is φ = 6150918678528.

The previous prime is 19990485713293. The next prime is 19990485713369. The reversal of 19990485713328 is 82331758409991.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1232147073 + ... + 1232163296.

It is an arithmetic number, because the mean of its divisors is an integer number (932002181934).

Almost surely, 2^{19990485713328} is an apocalyptic number.

It is an amenable number.

19990485713328 is an abundant number, since it is smaller than the sum of its proper divisors (35929645202712).

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

19990485713328 is a wasteful number, since it uses less digits than its factorization.

19990485713328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2464310406 (or 2464310387 counting only the distinct ones).

The product of its (nonzero) digits is 117573120, while the sum is 69.

The spelling of 19990485713328 in words is "nineteen trillion, nine hundred ninety billion, four hundred eighty-five million, seven hundred thirteen thousand, three hundred twenty-eight".