2805589194427 has 4 divisors (see below), whose sum is σ = 2831809654296. Its totient is φ = 2779368734560.

The previous prime is 2805589194413. The next prime is 2805589194451. The reversal of 2805589194427 is 7244919855082.

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 2805589194427 - 2¹¹ = 2805589192379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2805589194407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13110229774 + ... + 13110229987.

It is an arithmetic number, because the mean of its divisors is an integer number (707952413574).

Almost surely, 2^{2805589194427} is an apocalyptic number.

2805589194427 is a deficient number, since it is larger than the sum of its proper divisors (26220459869).

2805589194427 is a wasteful number, since it uses less digits than its factorization.

2805589194427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26220459868.

The product of its (nonzero) digits is 58060800, while the sum is 64.

The spelling of 2805589194427 in words is "two trillion, eight hundred five billion, five hundred eighty-nine million, one hundred ninety-four thousand, four hundred twenty-seven".