85860799550 has 72 divisors (see below), whose sum is σ = 173105512056. Its totient is φ = 31657106880.

The previous prime is 85860799523. The next prime is 85860799571. The reversal of 85860799550 is 5599706858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 603569 + ... + 732131.

It is an arithmetic number, because the mean of its divisors is an integer number (2404243223).

Almost surely, 2^85860799550 is an apocalyptic number.

85860799550 is an abundant number, since it is smaller than the sum of its proper divisors (87244712506).

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

85860799550 is a wasteful number, since it uses less digits than its factorization.

85860799550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128650 (or 128626 counting only the distinct ones).

The product of its (nonzero) digits is 27216000, while the sum is 62.

The spelling of 85860799550 in words is "eighty-five billion, eight hundred sixty million, seven hundred ninety-nine thousand, five hundred fifty".