622533831138 has 18 divisors (see below), whose sum is σ = 1348830553707. Its totient is φ = 207510161220.

The previous prime is 622533831119. The next prime is 622533831149. The reversal of 622533831138 is 831138335226.

622533831138 is a `hidden beast` number, since 6 + 2 + 2 + 533 + 83 + 1 + 1 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 311266915569 + 311266915569 = 557913^2 + 557913^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=557913.

It is a super-2 number, since 2×622533831138² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 622533831093 and 622533831102.

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, 3254493 + ... + 3440463.

Almost surely, 2^622533831138 is an apocalyptic number.

622533831138 is an abundant number, since it is smaller than the sum of its proper divisors (726296722569).

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

622533831138 is an frugal number, since it uses more digits than its factorization.

622533831138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371950 (or 185976 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 622533831138 in words is "six hundred twenty-two billion, five hundred thirty-three million, eight hundred thirty-one thousand, one hundred thirty-eight".