6888807040 has 64 divisors (see below), whose sum is σ = 16485597000. Its totient is φ = 2752671744.

The previous prime is 6888807017. The next prime is 6888807047. The reversal of 6888807040 is 407088886.

It can be written as a sum of positive squares in 4 ways, for example, as 4635975744 + 2252831296 = 68088^2 + 47464^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is not an unprimeable number, because it can be changed into a prime (6888807047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 679126 + ... + 689194.

Almost surely, 2^6888807040 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 6888807040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8242798500).

6888807040 is an abundant number, since it is smaller than the sum of its proper divisors (9596789960).

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

6888807040 is a wasteful number, since it uses less digits than its factorization.

6888807040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11157 (or 11145 counting only the distinct ones).

The product of its (nonzero) digits is 688128, while the sum is 49.

The square root of 6888807040 is about 82998.8375822216. The cubic root of 6888807040 is about 1902.7482887003.

The spelling of 6888807040 in words is "six billion, eight hundred eighty-eight million, eight hundred seven thousand, forty".