85809035887 has 8 divisors (see below), whose sum is σ = 86816494800. Its totient is φ = 84805929600.

The previous prime is 85809035861. The next prime is 85809035947. The reversal of 85809035887 is 78853090858.

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

It is a cyclic number.

It is not a de Polignac number, because 85809035887 - 2¹¹ = 85809033839 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 (85809035857) 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, 1048489 + ... + 1127362.

It is an arithmetic number, because the mean of its divisors is an integer number (10852061850).

Almost surely, 2^85809035887 is an apocalyptic number.

85809035887 is a deficient number, since it is larger than the sum of its proper divisors (1007458913).

85809035887 is a wasteful number, since it uses less digits than its factorization.

85809035887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176313.

The product of its (nonzero) digits is 19353600, while the sum is 61.

The spelling of 85809035887 in words is "eighty-five billion, eight hundred nine million, thirty-five thousand, eight hundred eighty-seven".