19282399805 has 4 divisors (see below), whose sum is σ = 23138879772. Its totient is φ = 15425919840.

The previous prime is 19282399757. The next prime is 19282399811. The reversal of 19282399805 is 50899328291.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2522249284 + 16760150521 = 50222^2 + 129461^2 .

It is not a de Polignac number, because 19282399805 - 2²² = 19278205501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 1928239976 + ... + 1928239985.

It is an arithmetic number, because the mean of its divisors is an integer number (5784719943).

Almost surely, 2^19282399805 is an apocalyptic number.

It is an amenable number.

19282399805 is a deficient number, since it is larger than the sum of its proper divisors (3856479967).

19282399805 is an equidigital number, since it uses as much as digits as its factorization.

19282399805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856479966.

The product of its (nonzero) digits is 2799360, while the sum is 56.

The spelling of 19282399805 in words is "nineteen billion, two hundred eighty-two million, three hundred ninety-nine thousand, eight hundred five".