42585583891 has 8 divisors (see below), whose sum is σ = 43710220800. Its totient is φ = 41470053768.

The previous prime is 42585583879. The next prime is 42585583961. The reversal of 42585583891 is 19838558524.

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

It is a cyclic number.

It is not a de Polignac number, because 42585583891 - 2¹³ = 42585575699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42585583811) 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, 2267221 + ... + 2285926.

It is an arithmetic number, because the mean of its divisors is an integer number (5463777600).

Almost surely, 2^42585583891 is an apocalyptic number.

42585583891 is a deficient number, since it is larger than the sum of its proper divisors (1124636909).

42585583891 is a wasteful number, since it uses less digits than its factorization.

42585583891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4553393.

The product of its digits is 13824000, while the sum is 58.

The spelling of 42585583891 in words is "forty-two billion, five hundred eighty-five million, five hundred eighty-three thousand, eight hundred ninety-one".