2640528760 has 16 divisors (see below), whose sum is σ = 5941189800. Its totient is φ = 1056211488.

The previous prime is 2640528739. The next prime is 2640528829. The reversal of 2640528760 is 678250462.

2640528760 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 (40), and also a Moran number because the ratio is a prime number: 66013219 = 2640528760 / (2 + 6 + 4 + 0 + 5 + 2 + 8 + 7 + 6 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33006570 + ... + 33006649.

Almost surely, 2^2640528760 is an apocalyptic number.

2640528760 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2640528760 is an abundant number, since it is smaller than the sum of its proper divisors (3300661040).

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

2640528760 is a wasteful number, since it uses less digits than its factorization.

2640528760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66013230 (or 66013226 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 2640528760 is about 51386.0755458130. The cubic root of 2640528760 is about 1382.1769114433.

The spelling of 2640528760 in words is "two billion, six hundred forty million, five hundred twenty-eight thousand, seven hundred sixty".