42648823636 has 6 divisors (see below), whose sum is σ = 74635441370. Its totient is φ = 21324411816.

The previous prime is 42648823621. The next prime is 42648823649. The reversal of 42648823636 is 63632884624.

42648823636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 23134410000 + 19514413636 = 152100^2 + 139694^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5331102951 + ... + 5331102958.

Almost surely, 2^42648823636 is an apocalyptic number.

It is an amenable number.

42648823636 is a deficient number, since it is larger than the sum of its proper divisors (31986617734).

42648823636 is a wasteful number, since it uses less digits than its factorization.

42648823636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10662205913 (or 10662205911 counting only the distinct ones).

The product of its digits is 7962624, while the sum is 52.

The spelling of 42648823636 in words is "forty-two billion, six hundred forty-eight million, eight hundred twenty-three thousand, six hundred thirty-six".