424221816050 has 18 divisors (see below), whose sum is σ = 789061144269. Its totient is φ = 169686884200.

The previous prime is 424221816017. The next prime is 424221816091. The reversal of 424221816050 is 50618122424.

It can be written as a sum of positive squares in 2 ways, for example, as 415737379729 + 8484436321 = 644777^2 + 92111^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=460555.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 424221816050.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 4559495 + ... + 4651605.

Almost surely, 2^424221816050 is an apocalyptic number.

424221816050 is a deficient number, since it is larger than the sum of its proper divisors (364839328219).

424221816050 is an frugal number, since it uses more digits than its factorization.

424221816050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184234 (or 92118 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 35.

Adding to 424221816050 its reverse (50618122424), we get a palindrome (474839938474).

The spelling of 424221816050 in words is "four hundred twenty-four billion, two hundred twenty-one million, eight hundred sixteen thousand, fifty".