86212856508 has 24 divisors (see below), whose sum is σ = 201171917520. Its totient is φ = 28736392320.

The previous prime is 86212856501. The next prime is 86212856519. The reversal of 86212856508 is 80565821268.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86212856501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 166198 + ... + 447266.

It is an arithmetic number, because the mean of its divisors is an integer number (8382163230).

Almost surely, 2^86212856508 is an apocalyptic number.

It is an amenable number.

86212856508 is an abundant number, since it is smaller than the sum of its proper divisors (114959061012).

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

86212856508 is a wasteful number, since it uses less digits than its factorization.

86212856508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306637 (or 306635 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 51.

The spelling of 86212856508 in words is "eighty-six billion, two hundred twelve million, eight hundred fifty-six thousand, five hundred eight".