19204970724 has 45 divisors (see below), whose sum is σ = 50212108947. Its totient is φ = 6400825416.

The previous prime is 19204970713. The next prime is 19204970777. The reversal of 19204970724 is 42707940291.

It is a happy number.

The square root of 19204970724 is 138582.

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

19204970724 is a `hidden beast` number, since 1 + 92 + 0 + 497 + 0 + 72 + 4 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 19204970724.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 2490627 + ... + 2498325.

Almost surely, 2^19204970724 is an apocalyptic number.

19204970724 is the 138582-nd square number.

It is an amenable number.

19204970724 is an abundant number, since it is smaller than the sum of its proper divisors (31007138223).

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

19204970724 is an frugal number, since it uses more digits than its factorization.

19204970724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15414 (or 7704 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The spelling of 19204970724 in words is "nineteen billion, two hundred four million, nine hundred seventy thousand, seven hundred twenty-four".