85817956312 has 16 divisors (see below), whose sum is σ = 175536729000. Its totient is φ = 39008161920.

The previous prime is 85817956307. The next prime is 85817956351. The reversal of 85817956312 is 21365971858.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 487601937 + ... + 487602112.

Almost surely, 2^85817956312 is an apocalyptic number.

It is an amenable number.

85817956312 is an abundant number, since it is smaller than the sum of its proper divisors (89718772688).

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

85817956312 is a wasteful number, since it uses less digits than its factorization.

85817956312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975204066 (or 975204062 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 55.

The spelling of 85817956312 in words is "eighty-five billion, eight hundred seventeen million, nine hundred fifty-six thousand, three hundred twelve".