42857285884887 has 16 divisors (see below), whose sum is σ = 57699121800320. Its totient is φ = 28294522467552.

The previous prime is 42857285884879. The next prime is 42857285884901. The reversal of 42857285884887 is 78848858275824.

It is not a de Polignac number, because 42857285884887 - 2³ = 42857285884879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42857285884837) 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, 129274333 + ... + 129605430.

It is an arithmetic number, because the mean of its divisors is an integer number (3606195112520).

Almost surely, 2^{42857285884887} is an apocalyptic number.

42857285884887 is a deficient number, since it is larger than the sum of its proper divisors (14841835915433).

42857285884887 is a wasteful number, since it uses less digits than its factorization.

42857285884887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258880302.

The product of its digits is 20552089600, while the sum is 84.

The spelling of 42857285884887 in words is "forty-two trillion, eight hundred fifty-seven billion, two hundred eighty-five million, eight hundred eighty-four thousand, eight hundred eighty-seven".