89309005785 has 16 divisors (see below), whose sum is σ = 158771566080. Its totient is φ = 47631469680.

The previous prime is 89309005777. The next prime is 89309005813. The reversal of 89309005785 is 58750090398.

It is not a de Polignac number, because 89309005785 - 2³ = 89309005777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 330773961 + ... + 330774230.

It is an arithmetic number, because the mean of its divisors is an integer number (9923222880).

Almost surely, 2^89309005785 is an apocalyptic number.

It is an amenable number.

89309005785 is a deficient number, since it is larger than the sum of its proper divisors (69462560295).

89309005785 is a wasteful number, since it uses less digits than its factorization.

89309005785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661548205 (or 661548199 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The spelling of 89309005785 in words is "eighty-nine billion, three hundred nine million, five thousand, seven hundred eighty-five".