86521306712 has 32 divisors (see below), whose sum is σ = 169466964480. Its totient is φ = 41334252960.

The previous prime is 86521306709. The next prime is 86521306723. The reversal of 86521306712 is 21760312568.

It is a self number, because there is not a number n which added to its sum of digits gives 86521306712.

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, 90458 + ... + 425705.

It is an arithmetic number, because the mean of its divisors is an integer number (5295842640).

Almost surely, 2^86521306712 is an apocalyptic number.

It is an amenable number.

86521306712 is a deficient number, since it is larger than the sum of its proper divisors (82945657768).

86521306712 is a wasteful number, since it uses less digits than its factorization.

86521306712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517103 (or 517099 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The spelling of 86521306712 in words is "eighty-six billion, five hundred twenty-one million, three hundred six thousand, seven hundred twelve".