86206620618 has 24 divisors (see below), whose sum is σ = 186880913856. Its totient is φ = 28720170600.

The previous prime is 86206620607. The next prime is 86206620671. The reversal of 86206620618 is 81602660268.

86206620618 is a `hidden beast` number, since 8 + 6 + 2 + 0 + 6 + 6 + 20 + 618 = 666.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1246188 + ... + 1313543.

It is an arithmetic number, because the mean of its divisors is an integer number (7786704744).

Almost surely, 2^86206620618 is an apocalyptic number.

86206620618 is an abundant number, since it is smaller than the sum of its proper divisors (100674293238).

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

86206620618 is a wasteful number, since it uses less digits than its factorization.

86206620618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561610 (or 2561607 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 45.

The spelling of 86206620618 in words is "eighty-six billion, two hundred six million, six hundred twenty thousand, six hundred eighteen".