19934133559 has 4 divisors (see below), whose sum is σ = 20131501320. Its totient is φ = 19736765800.

The previous prime is 19934133553. The next prime is 19934133563. The reversal of 19934133559 is 95533143991.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95533143991 = 157 ⋅608491363.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19934133559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19934133553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98683729 + ... + 98683930.

It is an arithmetic number, because the mean of its divisors is an integer number (5032875330).

Almost surely, 2^19934133559 is an apocalyptic number.

19934133559 is a deficient number, since it is larger than the sum of its proper divisors (197367761).

19934133559 is a wasteful number, since it uses less digits than its factorization.

19934133559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197367760.

The product of its digits is 1968300, while the sum is 52.

The spelling of 19934133559 in words is "nineteen billion, nine hundred thirty-four million, one hundred thirty-three thousand, five hundred fifty-nine".