2119441817 has 4 divisors (see below), whose sum is σ = 2143255860. Its totient is φ = 2095627776.

The previous prime is 2119441813. The next prime is 2119441843. The reversal of 2119441817 is 7181449112.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1037097616 + 1082344201 = 32204^2 + 32899^2 .

It is a cyclic number.

It is not a de Polignac number, because 2119441817 - 2² = 2119441813 is a prime.

It is a super-2 number, since 2×2119441817² = 8984067231296522978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2119441813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11906888 + ... + 11907065.

It is an arithmetic number, because the mean of its divisors is an integer number (535813965).

Almost surely, 2^2119441817 is an apocalyptic number.

It is an amenable number.

2119441817 is a deficient number, since it is larger than the sum of its proper divisors (23814043).

2119441817 is an equidigital number, since it uses as much as digits as its factorization.

2119441817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23814042.

The product of its digits is 16128, while the sum is 38.

The square root of 2119441817 is about 46037.3958538056. The cubic root of 2119441817 is about 1284.5189026033.

The spelling of 2119441817 in words is "two billion, one hundred nineteen million, four hundred forty-one thousand, eight hundred seventeen".