19243224127 has 4 divisors (see below), whose sum is σ = 19243617120. Its totient is φ = 19242831136.

The previous prime is 19243224113. The next prime is 19243224131. The reversal of 19243224127 is 72142234291.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19243224127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19243224197) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 110503 + ... + 225160.

It is an arithmetic number, because the mean of its divisors is an integer number (4810904280).

Almost surely, 2^19243224127 is an apocalyptic number.

19243224127 is a deficient number, since it is larger than the sum of its proper divisors (392993).

19243224127 is an equidigital number, since it uses as much as digits as its factorization.

19243224127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 392992.

The product of its digits is 48384, while the sum is 37.

The spelling of 19243224127 in words is "nineteen billion, two hundred forty-three million, two hundred twenty-four thousand, one hundred twenty-seven".