42635312164 has 12 divisors (see below), whose sum is σ = 74630472588. Its totient is φ = 21312320000.

The previous prime is 42635312081. The next prime is 42635312171. The reversal of 42635312164 is 46121353624.

It can be written as a sum of positive squares in 2 ways, for example, as 12703544100 + 29931768064 = 112710^2 + 173008^2 .

It is an unprimeable number.

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, 1316017 + ... + 1348024.

It is an arithmetic number, because the mean of its divisors is an integer number (6219206049).

Almost surely, 2^42635312164 is an apocalyptic number.

It is an amenable number.

42635312164 is a deficient number, since it is larger than the sum of its proper divisors (31995160424).

42635312164 is a wasteful number, since it uses less digits than its factorization.

42635312164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668046 (or 2668044 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

Adding to 42635312164 its reverse (46121353624), we get a palindrome (88756665788).

The spelling of 42635312164 in words is "forty-two billion, six hundred thirty-five million, three hundred twelve thousand, one hundred sixty-four".