84012544548 has 72 divisors (see below), whose sum is σ = 221049803520. Its totient is φ = 27899989920.

The previous prime is 84012544541. The next prime is 84012544559. The reversal of 84012544548 is 84544521048.

84012544548 is a `hidden beast` number, since 8 + 40 + 1 + 25 + 44 + 548 = 666.

It is not an unprimeable number, because it can be changed into a prime (84012544541) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 100813 + ... + 422123.

It is an arithmetic number, because the mean of its divisors is an integer number (3070136160).

Almost surely, 2^84012544548 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 84012544548, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110524901760).

84012544548 is an abundant number, since it is smaller than the sum of its proper divisors (137037258972).

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

84012544548 is a wasteful number, since it uses less digits than its factorization.

84012544548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321599 (or 321585 counting only the distinct ones).

The product of its (nonzero) digits is 819200, while the sum is 45.

The spelling of 84012544548 in words is "eighty-four billion, twelve million, five hundred forty-four thousand, five hundred forty-eight".