2805385089 has 8 divisors (see below), whose sum is σ = 4028245312. Its totient is φ = 1726390800.

The previous prime is 2805385081. The next prime is 2805385091. The reversal of 2805385089 is 9805835082.

2805385089 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2805385089 - 2³ = 2805385081 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2805385081) 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, 35966437 + ... + 35966514.

It is an arithmetic number, because the mean of its divisors is an integer number (503530664).

Almost surely, 2^2805385089 is an apocalyptic number.

It is an amenable number.

2805385089 is a deficient number, since it is larger than the sum of its proper divisors (1222860223).

2805385089 is a wasteful number, since it uses less digits than its factorization.

2805385089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71932967.

The product of its (nonzero) digits is 691200, while the sum is 48.

The square root of 2805385089 is about 52965.8860871788. The cubic root of 2805385089 is about 1410.3627470694.

The spelling of 2805385089 in words is "two billion, eight hundred five million, three hundred eighty-five thousand, eighty-nine".