42135564136 has 16 divisors (see below), whose sum is σ = 80343237600. Its totient is φ = 20710700784.

The previous prime is 42135564071. The next prime is 42135564137. The reversal of 42135564136 is 63146553124.

It is not an unprimeable number, because it can be changed into a prime (42135564137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44634660 + ... + 44635603.

It is an arithmetic number, because the mean of its divisors is an integer number (5021452350).

Almost surely, 2^42135564136 is an apocalyptic number.

It is an amenable number.

42135564136 is a deficient number, since it is larger than the sum of its proper divisors (38207673464).

42135564136 is a wasteful number, since it uses less digits than its factorization.

42135564136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89270328 (or 89270324 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 42135564136 in words is "forty-two billion, one hundred thirty-five million, five hundred sixty-four thousand, one hundred thirty-six".