8744128812 has 18 divisors (see below), whose sum is σ = 22103214588. Its totient is φ = 2914709592.

The previous prime is 8744128769. The next prime is 8744128817. The reversal of 8744128812 is 2188214478.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (8744128817) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121446198 + ... + 121446269.

It is an arithmetic number, because the mean of its divisors is an integer number (1227956366).

Almost surely, 2^8744128812 is an apocalyptic number.

It is an amenable number.

8744128812 is an abundant number, since it is smaller than the sum of its proper divisors (13359085776).

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

8744128812 is a wasteful number, since it uses less digits than its factorization.

8744128812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242892477 (or 242892472 counting only the distinct ones).

The product of its digits is 229376, while the sum is 45.

The square root of 8744128812 is about 93510.0465832415. The cubic root of 8744128812 is about 2060.1816545750.

The spelling of 8744128812 in words is "eight billion, seven hundred forty-four million, one hundred twenty-eight thousand, eight hundred twelve".