2195091269 has 8 divisors (see below), whose sum is σ = 2559873600. Its totient is φ = 1881506508.

The previous prime is 2195091263. The next prime is 2195091281. The reversal of 2195091269 is 9621905912.

2195091269 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2195091269 - 2²⁴ = 2178314053 is a prime.

It is a super-2 number, since 2×2195091269² = 9636851358480060722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195091263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3199499 + ... + 3200184.

It is an arithmetic number, because the mean of its divisors is an integer number (319984200).

Almost surely, 2^2195091269 is an apocalyptic number.

It is an amenable number.

2195091269 is a deficient number, since it is larger than the sum of its proper divisors (364782331).

2195091269 is an frugal number, since it uses more digits than its factorization.

2195091269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6399704 (or 6399690 counting only the distinct ones).

The product of its (nonzero) digits is 87480, while the sum is 44.

The square root of 2195091269 is about 46851.8011286653. The cubic root of 2195091269 is about 1299.6234153789.

The spelling of 2195091269 in words is "two billion, one hundred ninety-five million, ninety-one thousand, two hundred sixty-nine".