85809035888 has 40 divisors (see below), whose sum is σ = 172888577280. Its totient is φ = 41208124160.

The previous prime is 85809035861. The next prime is 85809035947. The reversal of 85809035888 is 88853090858.

It is a self number, because there is not a number n which added to its sum of digits gives 85809035888.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395495 + ... + 572742.

It is an arithmetic number, because the mean of its divisors is an integer number (4322214432).

Almost surely, 2^85809035888 is an apocalyptic number.

It is an amenable number.

85809035888 is an abundant number, since it is smaller than the sum of its proper divisors (87079541392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

85809035888 is a wasteful number, since it uses less digits than its factorization.

85809035888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968465 (or 968459 counting only the distinct ones).

The product of its (nonzero) digits is 22118400, while the sum is 62.

The spelling of 85809035888 in words is "eighty-five billion, eight hundred nine million, thirty-five thousand, eight hundred eighty-eight".