84867421716 has 144 divisors (see below), whose sum is σ = 267566802048. Its totient is φ = 22034764800.

The previous prime is 84867421703. The next prime is 84867421781. The reversal of 84867421716 is 61712476848.

84867421716 is a `hidden beast` number, since 8 + 486 + 74 + 21 + 71 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 9955536 + ... + 9964056.

It is an arithmetic number, because the mean of its divisors is an integer number (1858102792).

Almost surely, 2^84867421716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 84867421716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133783401024).

84867421716 is an abundant number, since it is smaller than the sum of its proper divisors (182699380332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84867421716 is a wasteful number, since it uses less digits than its factorization.

84867421716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12142 (or 12137 counting only the distinct ones).

The product of its digits is 3612672, while the sum is 54.

The spelling of 84867421716 in words is "eighty-four billion, eight hundred sixty-seven million, four hundred twenty-one thousand, seven hundred sixteen".