2849561813816 has 16 divisors (see below), whose sum is σ = 5345493448200. Its totient is φ = 1424096894304.

The previous prime is 2849561813801. The next prime is 2849561813821. The reversal of 2849561813816 is 6183181659482.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 85483871 + ... + 85517198.

Almost surely, 2^{2849561813816} is an apocalyptic number.

It is an amenable number.

2849561813816 is a deficient number, since it is larger than the sum of its proper divisors (2495931634384).

2849561813816 is a wasteful number, since it uses less digits than its factorization.

2849561813816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171003158 (or 171003154 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 62.

The spelling of 2849561813816 in words is "two trillion, eight hundred forty-nine billion, five hundred sixty-one million, eight hundred thirteen thousand, eight hundred sixteen".