2688018858 has 96 divisors (see below), whose sum is σ = 6923943936. Its totient is φ = 765628848.

The previous prime is 2688018857. The next prime is 2688018929. The reversal of 2688018858 is 8588108862.

It is a happy number.

2688018858 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 (2688018857) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1301935 + ... + 1303997.

It is an arithmetic number, because the mean of its divisors is an integer number (72124416).

Almost surely, 2^2688018858 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2688018858, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3461971968).

2688018858 is an abundant number, since it is smaller than the sum of its proper divisors (4235925078).

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

2688018858 is a wasteful number, since it uses less digits than its factorization.

2688018858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2470 (or 2458 counting only the distinct ones).

The product of its (nonzero) digits is 1966080, while the sum is 54.

The square root of 2688018858 is about 51846.1074527298. The cubic root of 2688018858 is about 1390.4139094802.

The spelling of 2688018858 in words is "two billion, six hundred eighty-eight million, eighteen thousand, eight hundred fifty-eight".