8206137918 has 32 divisors (see below), whose sum is σ = 19893669120. Its totient is φ = 2486708280.

The previous prime is 8206137889. The next prime is 8206137959. The reversal of 8206137918 is 8197316028.

8206137918 is a `hidden beast` number, since 8 + 20 + 613 + 7 + 9 + 1 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6906930 + ... + 6908117.

It is an arithmetic number, because the mean of its divisors is an integer number (621677160).

Almost surely, 2^8206137918 is an apocalyptic number.

8206137918 is an abundant number, since it is smaller than the sum of its proper divisors (11687531202).

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

8206137918 is a wasteful number, since it uses less digits than its factorization.

8206137918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13815069 (or 13815063 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 8206137918 is about 90587.7360242544. The cubic root of 8206137918 is about 2017.0326917559.

The spelling of 8206137918 in words is "eight billion, two hundred six million, one hundred thirty-seven thousand, nine hundred eighteen".