422521534544 has 20 divisors (see below), whose sum is σ = 819140542260. Its totient is φ = 211130426880.

The previous prime is 422521534541. The next prime is 422521534549. The reversal of 422521534544 is 445435125224.

It can be written as a sum of positive squares in 2 ways, for example, as 224240131600 + 198281402944 = 473540^2 + 445288^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422521534541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8119529 + ... + 8171400.

It is an arithmetic number, because the mean of its divisors is an integer number (40957027113).

Almost surely, 2^422521534544 is an apocalyptic number.

It is an amenable number.

422521534544 is a deficient number, since it is larger than the sum of its proper divisors (396619007716).

422521534544 is a wasteful number, since it uses less digits than its factorization.

422521534544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16292558 (or 16292552 counting only the distinct ones).

The product of its digits is 768000, while the sum is 41.

Adding to 422521534544 its reverse (445435125224), we get a palindrome (867956659768).

The spelling of 422521534544 in words is "four hundred twenty-two billion, five hundred twenty-one million, five hundred thirty-four thousand, five hundred forty-four".