19474019289 has 6 divisors (see below), whose sum is σ = 28129138986. Its totient is φ = 12982679520.

The previous prime is 19474019273. The next prime is 19474019297. The reversal of 19474019289 is 98291047491.

19474019289 is a `hidden beast` number, since 1 + 9 + 474 + 0 + 1 + 92 + 89 = 666.

It can be written as a sum of positive squares in only one way, i.e., 12145803264 + 7328216025 = 110208^2 + 85605^2 .

It is not a de Polignac number, because 19474019289 - 2⁴ = 19474019273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19474019209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1081889952 + ... + 1081889969.

It is an arithmetic number, because the mean of its divisors is an integer number (4688189831).

Almost surely, 2^19474019289 is an apocalyptic number.

It is an amenable number.

19474019289 is a deficient number, since it is larger than the sum of its proper divisors (8655119697).

19474019289 is a wasteful number, since it uses less digits than its factorization.

19474019289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2163779927 (or 2163779924 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The spelling of 19474019289 in words is "nineteen billion, four hundred seventy-four million, nineteen thousand, two hundred eighty-nine".