19241819242 has 4 divisors (see below), whose sum is σ = 28862728866. Its totient is φ = 9620909620.

The previous prime is 19241819227. The next prime is 19241819243. The reversal of 19241819242 is 24291814291.

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

It can be written as a sum of positive squares in only one way, i.e., 9663086601 + 9578732641 = 98301^2 + 97871^2 .

It is not an unprimeable number, because it can be changed into a prime (19241819243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4810454809 + ... + 4810454812.

Almost surely, 2^19241819242 is an apocalyptic number.

19241819242 is a deficient number, since it is larger than the sum of its proper divisors (9620909624).

19241819242 is an equidigital number, since it uses as much as digits as its factorization.

19241819242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9620909623.

The product of its digits is 82944, while the sum is 43.

The spelling of 19241819242 in words is "nineteen billion, two hundred forty-one million, eight hundred nineteen thousand, two hundred forty-two".