2195269749889 has 4 divisors (see below), whose sum is σ = 2195295847360. Its totient is φ = 2195243652420.

The previous prime is 2195269749877. The next prime is 2195269749943. The reversal of 2195269749889 is 9889479625912.

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 2195269749889 - 2¹⁹ = 2195269225601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2195269749289) 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, 12922149 + ... + 13090930.

It is an arithmetic number, because the mean of its divisors is an integer number (548823961840).

Almost surely, 2^{2195269749889} is an apocalyptic number.

It is an amenable number.

2195269749889 is a deficient number, since it is larger than the sum of its proper divisors (26097471).

2195269749889 is an equidigital number, since it uses as much as digits as its factorization.

2195269749889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26097470.

The product of its digits is 1410877440, while the sum is 79.

The spelling of 2195269749889 in words is "two trillion, one hundred ninety-five billion, two hundred sixty-nine million, seven hundred forty-nine thousand, eight hundred eighty-nine".