19534694083 has 4 divisors (see below), whose sum is σ = 19950325920. Its totient is φ = 19119062248.

The previous prime is 19534694063. The next prime is 19534694117. The reversal of 19534694083 is 38049643591.

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: 38049643591 = 109 ⋅349079299.

It is a cyclic number.

It is not a de Polignac number, because 19534694083 - 2¹⁷ = 19534563011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 19534694083.

It is not an unprimeable number, because it can be changed into a prime (19534694063) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207815848 + ... + 207815941.

It is an arithmetic number, because the mean of its divisors is an integer number (4987581480).

Almost surely, 2^19534694083 is an apocalyptic number.

19534694083 is a deficient number, since it is larger than the sum of its proper divisors (415631837).

19534694083 is an equidigital number, since it uses as much as digits as its factorization.

19534694083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415631836.

The product of its (nonzero) digits is 2799360, while the sum is 52.

The spelling of 19534694083 in words is "nineteen billion, five hundred thirty-four million, six hundred ninety-four thousand, eighty-three".