19242363263 has 4 divisors (see below), whose sum is σ = 19440738240. Its totient is φ = 19043988288.

The previous prime is 19242363233. The next prime is 19242363311. The reversal of 19242363263 is 36236324291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36236324291 = 177109 ⋅204599.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19242363263 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 19242363263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19242363233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99187343 + ... + 99187536.

It is an arithmetic number, because the mean of its divisors is an integer number (4860184560).

Almost surely, 2^19242363263 is an apocalyptic number.

19242363263 is a deficient number, since it is larger than the sum of its proper divisors (198374977).

19242363263 is an equidigital number, since it uses as much as digits as its factorization.

19242363263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198374976.

The product of its digits is 279936, while the sum is 41.

The spelling of 19242363263 in words is "nineteen billion, two hundred forty-two million, three hundred sixty-three thousand, two hundred sixty-three".