2805704845 has 8 divisors (see below), whose sum is σ = 3373596000. Its totient is φ = 2240063760.

The previous prime is 2805704843. The next prime is 2805704851. The reversal of 2805704845 is 5484075082.

It is a happy number.

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

It is not a de Polignac number, because 2805704845 - 2¹ = 2805704843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2805704843) 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 7 ways as a sum of consecutive naturals, for example, 559771 + ... + 564760.

It is an arithmetic number, because the mean of its divisors is an integer number (421699500).

Almost surely, 2^2805704845 is an apocalyptic number.

It is an amenable number.

2805704845 is a deficient number, since it is larger than the sum of its proper divisors (567891155).

2805704845 is a wasteful number, since it uses less digits than its factorization.

2805704845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125035.

The product of its (nonzero) digits is 358400, while the sum is 43.

The square root of 2805704845 is about 52968.9045100991. The cubic root of 2805704845 is about 1410.4163291153.

The spelling of 2805704845 in words is "two billion, eight hundred five million, seven hundred four thousand, eight hundred forty-five".