19235842405 has 8 divisors (see below), whose sum is σ = 24858627192. Its totient is φ = 14204929728.

The previous prime is 19235842343. The next prime is 19235842427. The reversal of 19235842405 is 50424853291.

It can be written as a sum of positive squares in 4 ways, for example, as 434222244 + 18801620161 = 20838^2 + 137119^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19235842405 - 2⁹ = 19235841893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147967954 + ... + 147968083.

It is an arithmetic number, because the mean of its divisors is an integer number (3107328399).

Almost surely, 2^19235842405 is an apocalyptic number.

It is an amenable number.

19235842405 is a deficient number, since it is larger than the sum of its proper divisors (5622784787).

19235842405 is a wasteful number, since it uses less digits than its factorization.

19235842405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 295936055.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 19235842405 in words is "nineteen billion, two hundred thirty-five million, eight hundred forty-two thousand, four hundred five".