2195459969431 has 4 divisors (see below), whose sum is σ = 2214888818832. Its totient is φ = 2176031120032.

The previous prime is 2195459969321. The next prime is 2195459969459. The reversal of 2195459969431 is 1349699545912.

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 2195459969431 - 2²⁹ = 2194923098519 is a prime.

It is a super-2 number, since 2×2195459969431² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (67) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2195459469431) 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, 9714424531 + ... + 9714424756.

It is an arithmetic number, because the mean of its divisors is an integer number (553722204708).

Almost surely, 2^{2195459969431} is an apocalyptic number.

2195459969431 is a deficient number, since it is larger than the sum of its proper divisors (19428849401).

2195459969431 is a wasteful number, since it uses less digits than its factorization.

2195459969431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19428849400.

The product of its digits is 94478400, while the sum is 67.

The spelling of 2195459969431 in words is "two trillion, one hundred ninety-five billion, four hundred fifty-nine million, nine hundred sixty-nine thousand, four hundred thirty-one".