8206188894 has 40 divisors (see below), whose sum is σ = 18468321960. Its totient is φ = 2723439024.

The previous prime is 8206188869. The next prime is 8206188919. The reversal of 8206188894 is 4988816028.

It is an interprime number because it is at equal distance from previous prime (8206188869) and next prime (8206188919).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 8206188894.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 73504 + ... + 147699.

It is an arithmetic number, because the mean of its divisors is an integer number (461708049).

Almost surely, 2^8206188894 is an apocalyptic number.

8206188894 is an abundant number, since it is smaller than the sum of its proper divisors (10262133066).

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

8206188894 is a wasteful number, since it uses less digits than its factorization.

8206188894 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221446 (or 221437 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The square root of 8206188894 is about 90588.0173864071. The cubic root of 8206188894 is about 2017.0368683063.

The spelling of 8206188894 in words is "eight billion, two hundred six million, one hundred eighty-eight thousand, eight hundred ninety-four".