19181930241 has 16 divisors (see below), whose sum is σ = 26691194880. Its totient is φ = 12230446800.

The previous prime is 19181930179. The next prime is 19181930249. The reversal of 19181930241 is 14203918191.

It is not a de Polignac number, because 19181930241 - 2⁶ = 19181930177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 19181930241.

It is not an unprimeable number, because it can be changed into a prime (19181930249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 896850 + ... + 917988.

It is an arithmetic number, because the mean of its divisors is an integer number (1668199680).

Almost surely, 2^19181930241 is an apocalyptic number.

It is an amenable number.

19181930241 is a deficient number, since it is larger than the sum of its proper divisors (7509264639).

19181930241 is a wasteful number, since it uses less digits than its factorization.

19181930241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34316.

The product of its (nonzero) digits is 15552, while the sum is 39.

The spelling of 19181930241 in words is "nineteen billion, one hundred eighty-one million, nine hundred thirty thousand, two hundred forty-one".