6725240928 has 144 divisors (see below), whose sum is σ = 22134228480. Its totient is φ = 1897129728.

The previous prime is 6725240923. The next prime is 6725240939. The reversal of 6725240928 is 8290425276.

It is a tau number, because it is divible by the number of its divisors (144).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6725240923) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 138151 + ... + 180377.

It is an arithmetic number, because the mean of its divisors is an integer number (153709920).

Almost surely, 2^6725240928 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 6725240928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11067114240).

6725240928 is an abundant number, since it is smaller than the sum of its proper divisors (15408987552).

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

6725240928 is a wasteful number, since it uses less digits than its factorization.

6725240928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42329 (or 42318 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The square root of 6725240928 is about 82007.5662850691. The cubic root of 6725240928 is about 1887.5680419195.

The spelling of 6725240928 in words is "six billion, seven hundred twenty-five million, two hundred forty thousand, nine hundred twenty-eight".