2195797865129 has 8 divisors (see below), whose sum is σ = 2521490371680. Its totient is φ = 1891117778400.

The previous prime is 2195797865119. The next prime is 2195797865153. The reversal of 2195797865129 is 9215687975912.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2195797865129 - 2⁸ = 2195797864873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2195797865119) 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, 5253104732 + ... + 5253105149.

It is an arithmetic number, because the mean of its divisors is an integer number (315186296460).

Almost surely, 2^{2195797865129} is an apocalyptic number.

It is an amenable number.

2195797865129 is a deficient number, since it is larger than the sum of its proper divisors (325692506551).

2195797865129 is a wasteful number, since it uses less digits than its factorization.

2195797865129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10506209911.

The product of its digits is 171460800, while the sum is 71.

The spelling of 2195797865129 in words is "two trillion, one hundred ninety-five billion, seven hundred ninety-seven million, eight hundred sixty-five thousand, one hundred twenty-nine".