2688718452 has 96 divisors (see below), whose sum is σ = 7246848000. Its totient is φ = 760015872.

The previous prime is 2688718429. The next prime is 2688718463. The reversal of 2688718452 is 2548178862.

It is a junction number, because it is equal to n+sod(n) for n = 2688718395 and 2688718404.

It is a congruent number.

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, 3994788 + ... + 3995460.

It is an arithmetic number, because the mean of its divisors is an integer number (75488000).

Almost surely, 2^2688718452 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 2688718452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3623424000).

2688718452 is an abundant number, since it is smaller than the sum of its proper divisors (4558129548).

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

2688718452 is a wasteful number, since it uses less digits than its factorization.

2688718452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125 (or 1123 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 51.

The square root of 2688718452 is about 51852.8538462446. The cubic root of 2688718452 is about 1390.5345238191.

The spelling of 2688718452 in words is "two billion, six hundred eighty-eight million, seven hundred eighteen thousand, four hundred fifty-two".