2748668520 has 128 divisors (see below), whose sum is σ = 8906365440. Its totient is φ = 674611200.

The previous prime is 2748668513. The next prime is 2748668539. The reversal of 2748668520 is 258668472.

2748668520 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2748668520.

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, 570120 + ... + 574920.

It is an arithmetic number, because the mean of its divisors is an integer number (69580980).

Almost surely, 2^2748668520 is an apocalyptic number.

2748668520 is a gapful number since it is divisible by the number (20) 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 2748668520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4453182720).

2748668520 is an abundant number, since it is smaller than the sum of its proper divisors (6157696920).

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

2748668520 is a wasteful number, since it uses less digits than its factorization.

2748668520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195 (or 5191 counting only the distinct ones).

The product of its (nonzero) digits is 1290240, while the sum is 48.

The square root of 2748668520 is about 52427.7457077834. The cubic root of 2748668520 is about 1400.7935161387.

Subtracting from 2748668520 its sum of digits (48), we obtain a palindrome (2748668472).

The spelling of 2748668520 in words is "two billion, seven hundred forty-eight million, six hundred sixty-eight thousand, five hundred twenty".