19975334443 has 2 divisors, whose sum is σ = 19975334444. Its totient is φ = 19975334442.

The previous prime is 19975334399. The next prime is 19975334447. The reversal of 19975334443 is 34443357991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 19975334443 - 2²⁹ = 19438463531 is a prime.

It is a super-4 number, since 4×19975334443⁴ (a number of 42 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (19975334447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9987667221 + 9987667222.

It is an arithmetic number, because the mean of its divisors is an integer number (9987667222).

Almost surely, 2^19975334443 is an apocalyptic number.

19975334443 is a deficient number, since it is larger than the sum of its proper divisors (1).

19975334443 is an equidigital number, since it uses as much as digits as its factorization.

19975334443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4898880, while the sum is 52.

The spelling of 19975334443 in words is "nineteen billion, nine hundred seventy-five million, three hundred thirty-four thousand, four hundred forty-three".