85359206840 has 32 divisors (see below), whose sum is σ = 192072168000. Its totient is φ = 34141202304.

The previous prime is 85359206797. The next prime is 85359206899. The reversal of 85359206840 is 4860295358.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 540881 + ... + 680639.

It is an arithmetic number, because the mean of its divisors is an integer number (6002255250).

Almost surely, 2^85359206840 is an apocalyptic number.

It is an amenable number.

85359206840 is an abundant number, since it is smaller than the sum of its proper divisors (106712961160).

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

85359206840 is a wasteful number, since it uses less digits than its factorization.

85359206840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155039 (or 155035 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 50.

The spelling of 85359206840 in words is "eighty-five billion, three hundred fifty-nine million, two hundred six thousand, eight hundred forty".