19927342584 has 24 divisors (see below), whose sum is σ = 53969886360. Its totient is φ = 6642447504.

The previous prime is 19927342573. The next prime is 19927342607. The reversal of 19927342584 is 48524372991.

19927342584 is a `hidden beast` number, since 1 + 9 + 9 + 27 + 34 + 2 + 584 = 666.

It is a tau number, because it is divible by the number of its divisors (24).

It is a self number, because there is not a number n which added to its sum of digits gives 19927342584.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138384252 + ... + 138384395.

It is an arithmetic number, because the mean of its divisors is an integer number (2248745265).

Almost surely, 2^19927342584 is an apocalyptic number.

It is an amenable number.

19927342584 is an abundant number, since it is smaller than the sum of its proper divisors (34042543776).

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

19927342584 is a wasteful number, since it uses less digits than its factorization.

19927342584 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276768659 (or 276768652 counting only the distinct ones).

The product of its digits is 4354560, while the sum is 54.

The spelling of 19927342584 in words is "nineteen billion, nine hundred twenty-seven million, three hundred forty-two thousand, five hundred eighty-four".