84418706988 has 72 divisors (see below), whose sum is σ = 266046842880. Its totient is φ = 21926936160.

The previous prime is 84418706987. The next prime is 84418706993. The reversal of 84418706988 is 88960781448.

84418706988 is a `hidden beast` number, since 84 + 418 + 7 + 0 + 69 + 88 = 666.

It is a super-3 number, since 3×84418706988³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (84418706987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15224268 + ... + 15229811.

It is an arithmetic number, because the mean of its divisors is an integer number (3695095040).

Almost surely, 2^84418706988 is an apocalyptic number.

It is an amenable number.

84418706988 is an abundant number, since it is smaller than the sum of its proper divisors (181628135892).

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

84418706988 is a wasteful number, since it uses less digits than its factorization.

84418706988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30454107 (or 30454102 counting only the distinct ones).

The product of its (nonzero) digits is 24772608, while the sum is 63.

The spelling of 84418706988 in words is "eighty-four billion, four hundred eighteen million, seven hundred six thousand, nine hundred eighty-eight".