19642583104 has 21 divisors (see below), whose sum is σ = 38980475887. Its totient is φ = 9820730944.

The previous prime is 19642583089. The next prime is 19642583131. The reversal of 19642583104 is 40138524691.

The square root of 19642583104 is 140152.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1112457 + ... + 1129975.

Almost surely, 2^19642583104 is an apocalyptic number.

19642583104 is the 140152-nd square number.

It is an amenable number.

19642583104 is a deficient number, since it is larger than the sum of its proper divisors (19337892783).

19642583104 is an frugal number, since it uses more digits than its factorization.

19642583104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35050 (or 17521 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 19642583104 in words is "nineteen billion, six hundred forty-two million, five hundred eighty-three thousand, one hundred four".