19054150391236 has 27 divisors (see below), whose sum is σ = 34178528412903. Its totient is φ = 9294532903680.

The previous prime is 19054150391233. The next prime is 19054150391323. The reversal of 19054150391236 is 63219305145091.

The square root of 19054150391236 is 4365106.

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

It can be written as a sum of positive squares in 4 ways, for example, as 16174151324100 + 2879999067136 = 4021710^2 + 1697056^2 .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19054150391236.

It is not an unprimeable number, because it can be changed into a prime (19054150391233) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 357912076 + ... + 357965308.

Almost surely, 2^{19054150391236} is an apocalyptic number.

19054150391236 is the 4365106-th square number.

It is an amenable number.

19054150391236 is a deficient number, since it is larger than the sum of its proper divisors (15124378021667).

19054150391236 is an frugal number, since it uses more digits than its factorization.

19054150391236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106552 (or 53276 counting only the distinct ones).

The product of its (nonzero) digits is 874800, while the sum is 49.

Multiplying 19054150391236 by its sum of digits (49), we get a square (933653369170564 = 30555742²).

The spelling of 19054150391236 in words is "nineteen trillion, fifty-four billion, one hundred fifty million, three hundred ninety-one thousand, two hundred thirty-six".