19409448227 has 8 divisors (see below), whose sum is σ = 21067070976. Its totient is φ = 17775338112.

The previous prime is 19409448221. The next prime is 19409448283. The reversal of 19409448227 is 72284490491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19409448227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19409448221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5876438 + ... + 5879739.

It is an arithmetic number, because the mean of its divisors is an integer number (2633383872).

Almost surely, 2^19409448227 is an apocalyptic number.

19409448227 is a deficient number, since it is larger than the sum of its proper divisors (1657622749).

19409448227 is a wasteful number, since it uses less digits than its factorization.

19409448227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11756317.

The product of its (nonzero) digits is 1161216, while the sum is 50.

The spelling of 19409448227 in words is "nineteen billion, four hundred nine million, four hundred forty-eight thousand, two hundred twenty-seven".