85850907813 has 48 divisors (see below), whose sum is σ = 139699422720. Its totient is φ = 50332492800.

The previous prime is 85850907787. The next prime is 85850907853. The reversal of 85850907813 is 31870905858.

85850907813 is a `hidden beast` number, since 8 + 58 + 509 + 0 + 7 + 81 + 3 = 666.

It is not a de Polignac number, because 85850907813 - 2²⁴ = 85834130597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 85850907813.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85850907853) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 11931745 + ... + 11938937.

It is an arithmetic number, because the mean of its divisors is an integer number (2910404640).

Almost surely, 2^85850907813 is an apocalyptic number.

It is an amenable number.

85850907813 is a deficient number, since it is larger than the sum of its proper divisors (53848514907).

85850907813 is a wasteful number, since it uses less digits than its factorization.

85850907813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11130 (or 11127 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The spelling of 85850907813 in words is "eighty-five billion, eight hundred fifty million, nine hundred seven thousand, eight hundred thirteen".