84587421687 has 8 divisors (see below), whose sum is σ = 112805307504. Its totient is φ = 56380575168.

The previous prime is 84587421683. The next prime is 84587421691. The reversal of 84587421687 is 78612478548.

It is an interprime number because it is at equal distance from previous prime (84587421683) and next prime (84587421691).

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

It is not a de Polignac number, because 84587421687 - 2² = 84587421683 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84587421687.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84587421683) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2741928 + ... + 2772605.

It is an arithmetic number, because the mean of its divisors is an integer number (14100663438).

Almost surely, 2^84587421687 is an apocalyptic number.

84587421687 is a deficient number, since it is larger than the sum of its proper divisors (28217885817).

84587421687 is a wasteful number, since it uses less digits than its factorization.

84587421687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5519649.

The product of its digits is 24084480, while the sum is 60.

The spelling of 84587421687 in words is "eighty-four billion, five hundred eighty-seven million, four hundred twenty-one thousand, six hundred eighty-seven".