19434275188 has 6 divisors (see below), whose sum is σ = 34009981586. Its totient is φ = 9717137592.

The previous prime is 19434275183. The next prime is 19434275213. The reversal of 19434275188 is 88157243491.

It can be written as a sum of positive squares in only one way, i.e., 18533555044 + 900720144 = 136138^2 + 30012^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19434275183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2429284395 + ... + 2429284402.

Almost surely, 2^19434275188 is an apocalyptic number.

It is an amenable number.

19434275188 is a deficient number, since it is larger than the sum of its proper divisors (14575706398).

19434275188 is a wasteful number, since it uses less digits than its factorization.

19434275188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4858568801 (or 4858568799 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The spelling of 19434275188 in words is "nineteen billion, four hundred thirty-four million, two hundred seventy-five thousand, one hundred eighty-eight".