6745984128 has 128 divisors (see below), whose sum is σ = 21441705600. Its totient is φ = 2075673600.

The previous prime is 6745984097. The next prime is 6745984129. The reversal of 6745984128 is 8214895476.

It is a happy number.

6745984128 is a `hidden beast` number, since 6 + 7 + 4 + 598 + 41 + 2 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6745984129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30148 + ... + 120003.

It is an arithmetic number, because the mean of its divisors is an integer number (167513325).

Almost surely, 2^6745984128 is an apocalyptic number.

It is an amenable number.

6745984128 is an abundant number, since it is smaller than the sum of its proper divisors (14695721472).

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

6745984128 is a wasteful number, since it uses less digits than its factorization.

6745984128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150187 (or 150169 counting only the distinct ones).

The product of its digits is 3870720, while the sum is 54.

The square root of 6745984128 is about 82133.9401709184. The cubic root of 6745984128 is about 1889.5067092566.

The spelling of 6745984128 in words is "six billion, seven hundred forty-five million, nine hundred eighty-four thousand, one hundred twenty-eight".