19239591133 has 24 divisors (see below), whose sum is σ = 23172497280. Its totient is φ = 15908669280.

The previous prime is 19239591073. The next prime is 19239591229. The reversal of 19239591133 is 33119593291.

It is a happy number.

It is not a de Polignac number, because 19239591133 - 2¹⁷ = 19239460061 is a prime.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19239591733) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1846368 + ... + 1856758.

It is an arithmetic number, because the mean of its divisors is an integer number (965520720).

Almost surely, 2^19239591133 is an apocalyptic number.

It is an amenable number.

19239591133 is a deficient number, since it is larger than the sum of its proper divisors (3932906147).

19239591133 is a wasteful number, since it uses less digits than its factorization.

19239591133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11737 (or 11730 counting only the distinct ones).

The product of its digits is 196830, while the sum is 46.

The spelling of 19239591133 in words is "nineteen billion, two hundred thirty-nine million, five hundred ninety-one thousand, one hundred thirty-three".