213550442444 has 12 divisors (see below), whose sum is σ = 395696408184. Its totient is φ = 100494325824.

The previous prime is 213550442431. The next prime is 213550442447. The reversal of 213550442444 is 444244055312.

213550442444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 213550442398 and 213550442407.

It is not an unprimeable number, because it can be changed into a prime (213550442447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1570223774 + ... + 1570223909.

It is an arithmetic number, because the mean of its divisors is an integer number (32974700682).

Almost surely, 2^213550442444 is an apocalyptic number.

It is an amenable number.

213550442444 is a deficient number, since it is larger than the sum of its proper divisors (182145965740).

213550442444 is a wasteful number, since it uses less digits than its factorization.

213550442444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3140447704 (or 3140447702 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 213550442444 its reverse (444244055312), we get a palindrome (657794497756).

The spelling of 213550442444 in words is "two hundred thirteen billion, five hundred fifty million, four hundred forty-two thousand, four hundred forty-four".