42842491587 has 36 divisors (see below), whose sum is σ = 72729250776. Its totient is φ = 24229013760.

The previous prime is 42842491511. The next prime is 42842491603. The reversal of 42842491587 is 78519424824.

It is not a de Polignac number, because 42842491587 - 2⁸ = 42842491331 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42842491507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 457989 + ... + 543542.

It is an arithmetic number, because the mean of its divisors is an integer number (2020256966).

Almost surely, 2^42842491587 is an apocalyptic number.

42842491587 is a deficient number, since it is larger than the sum of its proper divisors (29886759189).

42842491587 is a wasteful number, since it uses less digits than its factorization.

42842491587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001648 (or 1001638 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 54.

The spelling of 42842491587 in words is "forty-two billion, eight hundred forty-two million, four hundred ninety-one thousand, five hundred eighty-seven".