16853853849 has 12 divisors (see below), whose sum is σ = 26140671504. Its totient is φ = 9630773544.

The previous prime is 16853853829. The next prime is 16853853853. The reversal of 16853853849 is 94835835861.

It is not a de Polignac number, because 16853853849 - 2¹⁶ = 16853788313 is a prime.

It is a super-2 number, since 2×16853853849² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16853853792 and 16853853801.

It is not an unprimeable number, because it can be changed into a prime (16853853829) 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, 57325887 + ... + 57326180.

It is an arithmetic number, because the mean of its divisors is an integer number (2178389292).

Almost surely, 2^16853853849 is an apocalyptic number.

It is an amenable number.

16853853849 is a deficient number, since it is larger than the sum of its proper divisors (9286817655).

16853853849 is a wasteful number, since it uses less digits than its factorization.

16853853849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114652084 (or 114652077 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 60.

The spelling of 16853853849 in words is "sixteen billion, eight hundred fifty-three million, eight hundred fifty-three thousand, eight hundred forty-nine".