16849862618 has 8 divisors (see below), whose sum is σ = 25308008820. Its totient is φ = 8413859680.

The previous prime is 16849862609. The next prime is 16849862713. The reversal of 16849862618 is 81626894861.

It can be written as a sum of positive squares in 2 ways, for example, as 16246816369 + 603046249 = 127463^2 + 24557^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5533913 + ... + 5536956.

Almost surely, 2^16849862618 is an apocalyptic number.

16849862618 is a deficient number, since it is larger than the sum of its proper divisors (8458146202).

16849862618 is a wasteful number, since it uses less digits than its factorization.

16849862618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11071632.

The product of its digits is 7962624, while the sum is 59.

The spelling of 16849862618 in words is "sixteen billion, eight hundred forty-nine million, eight hundred sixty-two thousand, six hundred eighteen".