85575786909 has 8 divisors (see below), whose sum is σ = 114108475872. Its totient is φ = 57046811280.

The previous prime is 85575786893. The next prime is 85575786913. The reversal of 85575786909 is 90968757558.

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

It is not a de Polignac number, because 85575786909 - 2⁴ = 85575786893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85575782909) 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, 874107 + ... + 967064.

It is an arithmetic number, because the mean of its divisors is an integer number (14263559484).

Almost surely, 2^85575786909 is an apocalyptic number.

It is an amenable number.

85575786909 is a deficient number, since it is larger than the sum of its proper divisors (28532688963).

85575786909 is a wasteful number, since it uses less digits than its factorization.

85575786909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856667.

The product of its (nonzero) digits is 190512000, while the sum is 69.

The spelling of 85575786909 in words is "eighty-five billion, five hundred seventy-five million, seven hundred eighty-six thousand, nine hundred nine".