6688854480 has 320 divisors, whose sum is σ = 26977701888. Its totient is φ = 1329377280.

The previous prime is 6688854467. The next prime is 6688854481. The reversal of 6688854480 is 844588866.

It is a self number, because there is not a number n which added to its sum of digits gives 6688854480.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6688854481) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 417172 + ... + 432908.

Almost surely, 2^6688854480 is an apocalyptic number.

6688854480 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6688854480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13488850944).

6688854480 is an abundant number, since it is smaller than the sum of its proper divisors (20288847408).

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

6688854480 is a wasteful number, since it uses less digits than its factorization.

6688854480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15794 (or 15788 counting only the distinct ones).

The product of its (nonzero) digits is 11796480, while the sum is 57.

The square root of 6688854480 is about 81785.4172820559. The cubic root of 6688854480 is about 1884.1576988546.

It can be divided in two parts, 6688 and 854480, that added together give a palindrome (861168).

The spelling of 6688854480 in words is "six billion, six hundred eighty-eight million, eight hundred fifty-four thousand, four hundred eighty".