2805687427071 has 8 divisors (see below), whose sum is σ = 3740925098800. Its totient is φ = 1870454020032.

The previous prime is 2805687427031. The next prime is 2805687427073. The reversal of 2805687427071 is 1707247865082.

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

It is a de Polignac number, because none of the positive numbers 2^k-2805687427071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805687427073) 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, 1094355 + ... + 2609403.

It is an arithmetic number, because the mean of its divisors is an integer number (467615637350).

Almost surely, 2^{2805687427071} is an apocalyptic number.

2805687427071 is a deficient number, since it is larger than the sum of its proper divisors (935237671729).

2805687427071 is a wasteful number, since it uses less digits than its factorization.

2805687427071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132345.

The product of its (nonzero) digits is 10536960, while the sum is 57.

The spelling of 2805687427071 in words is "two trillion, eight hundred five billion, six hundred eighty-seven million, four hundred twenty-seven thousand, seventy-one".