5549866812 has 54 divisors (see below), whose sum is σ = 16319256408. Its totient is φ = 1585675728.

The previous prime is 5549866783. The next prime is 5549866859. The reversal of 5549866812 is 2186689455.

5549866812 is a `hidden beast` number, since 5 + 549 + 86 + 6 + 8 + 12 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1571328 + ... + 1574855.

It is an arithmetic number, because the mean of its divisors is an integer number (302208452).

Almost surely, 2^5549866812 is an apocalyptic number.

It is an amenable number.

5549866812 is an abundant number, since it is smaller than the sum of its proper divisors (10769389596).

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

5549866812 is a wasteful number, since it uses less digits than its factorization.

5549866812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3146207 (or 3146195 counting only the distinct ones).

The product of its digits is 4147200, while the sum is 54.

The square root of 5549866812 is about 74497.4282240669. The cubic root of 5549866812 is about 1770.4928896409.

The spelling of 5549866812 in words is "five billion, five hundred forty-nine million, eight hundred sixty-six thousand, eight hundred twelve".