19282338049 has 4 divisors (see below), whose sum is σ = 20765594836. Its totient is φ = 17799081264.

The previous prime is 19282338013. The next prime is 19282338067. The reversal of 19282338049 is 94083328291.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 94083328291 = 25423 ⋅3700717.

It can be written as a sum of positive squares in 2 ways, for example, as 10479207424 + 8803130625 = 102368^2 + 93825^2 .

It is a cyclic number.

It is not a de Polignac number, because 19282338049 - 2⁹ = 19282337537 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19282337993 and 19282338011.

It is not an unprimeable number, because it can be changed into a prime (19282338149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 741628374 + ... + 741628399.

It is an arithmetic number, because the mean of its divisors is an integer number (5191398709).

Almost surely, 2^19282338049 is an apocalyptic number.

It is an amenable number.

19282338049 is a deficient number, since it is larger than the sum of its proper divisors (1483256787).

19282338049 is a wasteful number, since it uses less digits than its factorization.

19282338049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483256786.

The product of its (nonzero) digits is 746496, while the sum is 49.

The spelling of 19282338049 in words is "nineteen billion, two hundred eighty-two million, three hundred thirty-eight thousand, forty-nine".