84751024128 has 144 divisors (see below), whose sum is σ = 235853202816. Its totient is φ = 27019182080.

The previous prime is 84751024091. The next prime is 84751024129. The reversal of 84751024128 is 82142015748.

It is a self number, because there is not a number n which added to its sum of digits gives 84751024128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84751024129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9039283 + ... + 9048653.

It is an arithmetic number, because the mean of its divisors is an integer number (1637869464).

Almost surely, 2^84751024128 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 84751024128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117926601408).

84751024128 is an abundant number, since it is smaller than the sum of its proper divisors (151102178688).

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

84751024128 is an frugal number, since it uses more digits than its factorization.

84751024128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431 (or 9399 counting only the distinct ones).

The product of its (nonzero) digits is 143360, while the sum is 42.

The spelling of 84751024128 in words is "eighty-four billion, seven hundred fifty-one million, twenty-four thousand, one hundred twenty-eight".