42366542636 has 36 divisors (see below), whose sum is σ = 81543869400. Its totient is φ = 19245811200.

The previous prime is 42366542633. The next prime is 42366542683. The reversal of 42366542636 is 63624566324.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (42366542633) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 796556 + ... + 848076.

Almost surely, 2^42366542636 is an apocalyptic number.

It is an amenable number.

42366542636 is a deficient number, since it is larger than the sum of its proper divisors (39177326764).

42366542636 is a wasteful number, since it uses less digits than its factorization.

42366542636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53246 (or 53233 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 47.

The spelling of 42366542636 in words is "forty-two billion, three hundred sixty-six million, five hundred forty-two thousand, six hundred thirty-six".