86539009806378 has 48 divisors (see below), whose sum is σ = 190268980181280. Its totient is φ = 28422385931232.

The previous prime is 86539009806349. The next prime is 86539009806391. The reversal of 86539009806378 is 87360890093568.

86539009806378 is a `hidden beast` number, since 8 + 6 + 539 + 0 + 0 + 9 + 80 + 6 + 3 + 7 + 8 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 77089348 + ... + 78203871.

It is an arithmetic number, because the mean of its divisors is an integer number (3963937087110).

Almost surely, 2^{86539009806378} is an apocalyptic number.

86539009806378 is an abundant number, since it is smaller than the sum of its proper divisors (103729970374902).

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

86539009806378 is a wasteful number, since it uses less digits than its factorization.

86539009806378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155293683 (or 155293680 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 86539009806378 in words is "eighty-six trillion, five hundred thirty-nine billion, nine million, eight hundred six thousand, three hundred seventy-eight".