16853853850 has 24 divisors (see below), whose sum is σ = 31420606140. Its totient is φ = 6725963520.

The previous prime is 16853853829. The next prime is 16853853853. The reversal of 16853853850 is 5835835861.

It can be written as a sum of positive squares in 6 ways, for example, as 2816106489 + 14037747361 = 53067^2 + 118481^2 .

It is not an unprimeable number, because it can be changed into a prime (16853853853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 367585 + ... + 410884.

Almost surely, 2^16853853850 is an apocalyptic number.

16853853850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16853853850 is a deficient number, since it is larger than the sum of its proper divisors (14566752290).

16853853850 is a wasteful number, since it uses less digits than its factorization.

16853853850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 778914 (or 778909 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 52.

The spelling of 16853853850 in words is "sixteen billion, eight hundred fifty-three million, eight hundred fifty-three thousand, eight hundred fifty".