42875885581617 has 16 divisors (see below), whose sum is σ = 62366689744128. Its totient is φ = 25984649675280.

The previous prime is 42875885581609. The next prime is 42875885581681. The reversal of 42875885581617 is 71618558857824.

It is a happy number.

It is not a de Polignac number, because 42875885581617 - 2³ = 42875885581609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42875885581117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17203483 + ... + 19537440.

It is an arithmetic number, because the mean of its divisors is an integer number (3897918109008).

Almost surely, 2^{42875885581617} is an apocalyptic number.

It is an amenable number.

42875885581617 is a deficient number, since it is larger than the sum of its proper divisors (19490804162511).

42875885581617 is a wasteful number, since it uses less digits than its factorization.

42875885581617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36776300.

The product of its digits is 1204224000, while the sum is 75.

The spelling of 42875885581617 in words is "forty-two trillion, eight hundred seventy-five billion, eight hundred eighty-five million, five hundred eighty-one thousand, six hundred seventeen".