42985970637 has 8 divisors (see below), whose sum is σ = 57392822304. Its totient is φ = 28618216368.

The previous prime is 42985970609. The next prime is 42985970659. The reversal of 42985970637 is 73607958924.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42985970637 - 2⁷ = 42985970509 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42985990637) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 9771783 + ... + 9776180.

It is an arithmetic number, because the mean of its divisors is an integer number (7174102788).

Almost surely, 2^42985970637 is an apocalyptic number.

It is an amenable number.

42985970637 is a deficient number, since it is larger than the sum of its proper divisors (14406851667).

42985970637 is a wasteful number, since it uses less digits than its factorization.

42985970637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19548699.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 42985970637 in words is "forty-two billion, nine hundred eighty-five million, nine hundred seventy thousand, six hundred thirty-seven".