19054294857 has 12 divisors (see below), whose sum is σ = 29640014404. Its totient is φ = 11725719840.

The previous prime is 19054294793. The next prime is 19054294867. The reversal of 19054294857 is 75849245091.

It is a happy number.

19054294857 is a `hidden beast` number, since 1 + 9 + 0 + 542 + 9 + 48 + 57 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 10386871056 + 8667423801 = 101916^2 + 93099^2 .

It is not a de Polignac number, because 19054294857 - 2⁶ = 19054294793 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19054294867) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 81428494 + ... + 81428727.

Almost surely, 2^19054294857 is an apocalyptic number.

It is an amenable number.

19054294857 is a deficient number, since it is larger than the sum of its proper divisors (10585719547).

19054294857 is a wasteful number, since it uses less digits than its factorization.

19054294857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162857240 (or 162857237 counting only the distinct ones).

The product of its (nonzero) digits is 3628800, while the sum is 54.

The spelling of 19054294857 in words is "nineteen billion, fifty-four million, two hundred ninety-four thousand, eight hundred fifty-seven".