19326075434 has 4 divisors (see below), whose sum is σ = 28989113154. Its totient is φ = 9663037716.

The previous prime is 19326075421. The next prime is 19326075437. The reversal of 19326075434 is 43457062391.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 19029374809 + 296700625 = 137947^2 + 17225^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19326075437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4831518857 + ... + 4831518860.

Almost surely, 2^19326075434 is an apocalyptic number.

19326075434 is a deficient number, since it is larger than the sum of its proper divisors (9663037720).

19326075434 is an equidigital number, since it uses as much as digits as its factorization.

19326075434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9663037719.

The product of its (nonzero) digits is 544320, while the sum is 44.

The spelling of 19326075434 in words is "nineteen billion, three hundred twenty-six million, seventy-five thousand, four hundred thirty-four".