19797052804 has 9 divisors (see below), whose sum is σ = 34645334871. Its totient is φ = 9898385700.

The previous prime is 19797052799. The next prime is 19797052819. The reversal of 19797052804 is 40825079791.

The square root of 19797052804 is 140702.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 246229 + ... + 316579.

Almost surely, 2^19797052804 is an apocalyptic number.

19797052804 is the 140702-nd square number.

It is an amenable number.

19797052804 is a deficient number, since it is larger than the sum of its proper divisors (14848282067).

19797052804 is an frugal number, since it uses more digits than its factorization.

19797052804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140706 (or 70353 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 52.

The spelling of 19797052804 in words is "nineteen billion, seven hundred ninety-seven million, fifty-two thousand, eight hundred four".