85688045212 has 48 divisors (see below), whose sum is σ = 186999740928. Its totient is φ = 33377094720.

The previous prime is 85688045203. The next prime is 85688045239. The reversal of 85688045212 is 21254088658.

It is a super-2 number, since 2×85688045212² (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1376178 + ... + 1437094.

It is an arithmetic number, because the mean of its divisors is an integer number (3895827936).

Almost surely, 2^85688045212 is an apocalyptic number.

It is an amenable number.

85688045212 is an abundant number, since it is smaller than the sum of its proper divisors (101311695716).

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

85688045212 is a wasteful number, since it uses less digits than its factorization.

85688045212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65506 (or 65504 counting only the distinct ones).

The product of its (nonzero) digits is 1228800, while the sum is 49.

The spelling of 85688045212 in words is "eighty-five billion, six hundred eighty-eight million, forty-five thousand, two hundred twelve".