86206412878 has 16 divisors (see below), whose sum is σ = 132046999920. Its totient is φ = 42196809600.

The previous prime is 86206412839. The next prime is 86206412881. The reversal of 86206412878 is 87821460268.

It is a happy number.

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, 1487253 + ... + 1544128.

It is an arithmetic number, because the mean of its divisors is an integer number (8252937495).

Almost surely, 2^86206412878 is an apocalyptic number.

86206412878 is a deficient number, since it is larger than the sum of its proper divisors (45840587042).

86206412878 is a wasteful number, since it uses less digits than its factorization.

86206412878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3031683.

The product of its (nonzero) digits is 2064384, while the sum is 52.

The spelling of 86206412878 in words is "eighty-six billion, two hundred six million, four hundred twelve thousand, eight hundred seventy-eight".