19242152427 has 4 divisors (see below), whose sum is σ = 25656203240. Its totient is φ = 12828101616.

The previous prime is 19242152407. The next prime is 19242152519. The reversal of 19242152427 is 72425124291.

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

It is not a de Polignac number, because 19242152427 - 2¹¹ = 19242150379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (19242152407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3207025402 + ... + 3207025407.

It is an arithmetic number, because the mean of its divisors is an integer number (6414050810).

Almost surely, 2^19242152427 is an apocalyptic number.

19242152427 is a deficient number, since it is larger than the sum of its proper divisors (6414050813).

19242152427 is an equidigital number, since it uses as much as digits as its factorization.

19242152427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6414050812.

The product of its digits is 80640, while the sum is 39.

The spelling of 19242152427 in words is "nineteen billion, two hundred forty-two million, one hundred fifty-two thousand, four hundred twenty-seven".