422638986050 has 18 divisors (see below), whose sum is σ = 786117064473. Its totient is φ = 169053755640.

The previous prime is 422638985999. The next prime is 422638986061. The reversal of 422638986050 is 50689836224.

It can be written as a sum of positive squares in 2 ways, for example, as 414186206329 + 8452779721 = 643573^2 + 91939^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=459695.

It is a super-3 number, since 3×422638986050³ (a number of 36 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 422638985983 and 422638986001.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 4550981 + ... + 4642919.

Almost surely, 2^422638986050 is an apocalyptic number.

422638986050 is a deficient number, since it is larger than the sum of its proper divisors (363478078423).

422638986050 is an frugal number, since it uses more digits than its factorization.

422638986050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183890 (or 91946 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 422638986050 in words is "four hundred twenty-two billion, six hundred thirty-eight million, nine hundred eighty-six thousand, fifty".