85866963212 has 12 divisors (see below), whose sum is σ = 159106431960. Its totient is φ = 40407982656.

The previous prime is 85866963199. The next prime is 85866963223. The reversal of 85866963212 is 21236966858.

It is a super-2 number, since 2×85866963212² (a number of 23 digits) contains 22 as substring.

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, 631374662 + ... + 631374797.

It is an arithmetic number, because the mean of its divisors is an integer number (13258869330).

Almost surely, 2^85866963212 is an apocalyptic number.

It is an amenable number.

85866963212 is a deficient number, since it is larger than the sum of its proper divisors (73239468748).

85866963212 is a wasteful number, since it uses less digits than its factorization.

85866963212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1262749480 (or 1262749478 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 56.

The spelling of 85866963212 in words is "eighty-five billion, eight hundred sixty-six million, nine hundred sixty-three thousand, two hundred twelve".