2668553888 has 192 divisors, whose sum is σ = 7104319488. Its totient is φ = 952888320.

The previous prime is 2668553851. The next prime is 2668553911. The reversal of 2668553888 is 8883558662.

It is a happy number.

2668553888 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7271081 + ... + 7271447.

It is an arithmetic number, because the mean of its divisors is an integer number (37001664).

Almost surely, 2^2668553888 is an apocalyptic number.

2668553888 is a gapful number since it is divisible by the number (28) 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 2668553888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3552159744).

2668553888 is an abundant number, since it is smaller than the sum of its proper divisors (4435765600).

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

2668553888 is a wasteful number, since it uses less digits than its factorization.

2668553888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 635 (or 627 counting only the distinct ones).

The product of its digits is 22118400, while the sum is 59.

The square root of 2668553888 is about 51658.0476595854. The cubic root of 2668553888 is about 1387.0496031076.

The spelling of 2668553888 in words is "two billion, six hundred sixty-eight million, five hundred fifty-three thousand, eight hundred eighty-eight".