19838954841 has 4 divisors (see below), whose sum is σ = 26451939792. Its totient is φ = 13225969892.

The previous prime is 19838954833. The next prime is 19838954867. The reversal of 19838954841 is 14845983891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19838954841 - 2³ = 19838954833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19838954141) 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, 3306492471 + ... + 3306492476.

It is an arithmetic number, because the mean of its divisors is an integer number (6612984948).

Almost surely, 2^19838954841 is an apocalyptic number.

It is an amenable number.

19838954841 is a deficient number, since it is larger than the sum of its proper divisors (6612984951).

19838954841 is an equidigital number, since it uses as much as digits as its factorization.

19838954841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6612984950.

The product of its digits is 9953280, while the sum is 60.

The spelling of 19838954841 in words is "nineteen billion, eight hundred thirty-eight million, nine hundred fifty-four thousand, eight hundred forty-one".