2195441819 has 4 divisors (see below), whose sum is σ = 2201328096. Its totient is φ = 2189555544.

The previous prime is 2195441803. The next prime is 2195441821. The reversal of 2195441819 is 9181445912.

2195441819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 2195441819 - 2⁴ = 2195441803 is a prime.

It is a super-2 number, since 2×2195441819² = 9639929561228057522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2195441819.

It is not an unprimeable number, because it can be changed into a prime (2195441869) 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, 2942579 + ... + 2943324.

It is an arithmetic number, because the mean of its divisors is an integer number (550332024).

Almost surely, 2^2195441819 is an apocalyptic number.

2195441819 is a deficient number, since it is larger than the sum of its proper divisors (5886277).

2195441819 is an equidigital number, since it uses as much as digits as its factorization.

2195441819 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5886276.

The product of its digits is 103680, while the sum is 44.

The square root of 2195441819 is about 46855.5420307993. The cubic root of 2195441819 is about 1299.6925937839.

The spelling of 2195441819 in words is "two billion, one hundred ninety-five million, four hundred forty-one thousand, eight hundred nineteen".