550943931986 has 24 divisors (see below), whose sum is σ = 961834524300. Its totient is φ = 235997597472.

The previous prime is 550943931973. The next prime is 550943931997. The reversal of 550943931986 is 689139349055.

It can be written as a sum of positive squares in 2 ways, for example, as 527083260025 + 23860671961 = 726005^2 + 154469^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1251245 + ... + 1633248.

Almost surely, 2^550943931986 is an apocalyptic number.

550943931986 is a deficient number, since it is larger than the sum of its proper divisors (410890592314).

550943931986 is a wasteful number, since it uses less digits than its factorization.

550943931986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2886458 (or 2886451 counting only the distinct ones).

The product of its (nonzero) digits is 31492800, while the sum is 62.

The spelling of 550943931986 in words is "five hundred fifty billion, nine hundred forty-three million, nine hundred thirty-one thousand, nine hundred eighty-six".