19044552004 has 9 divisors (see below), whose sum is σ = 33328449021. Its totient is φ = 9522138000.

The previous prime is 19044552001. The next prime is 19044552013. The reversal of 19044552004 is 40025544091.

The square root of 19044552004 is 138002.

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

It can be written as a sum of positive squares in only one way, i.e., 198753604 + 18845798400 = 14098^2 + 137280^2 .

It is a super-2 number, since 2×19044552004² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19044552001) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 241504 + ... + 310504.

Almost surely, 2^19044552004 is an apocalyptic number.

19044552004 is the 138002-nd square number.

It is an amenable number.

19044552004 is a deficient number, since it is larger than the sum of its proper divisors (14283897017).

19044552004 is an frugal number, since it uses more digits than its factorization.

19044552004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138006 (or 69003 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The spelling of 19044552004 in words is "nineteen billion, forty-four million, five hundred fifty-two thousand, four".