2643530000 has 50 divisors (see below), whose sum is σ = 6400274694. Its totient is φ = 1057408000.

The previous prime is 2643529979. The next prime is 2643530017. The reversal of 2643530000 is 353462.

It can be written as a sum of positive squares in 5 ways, for example, as 355247104 + 2288282896 = 18848^2 + 47836^2 .

It is a tau number, because it is divible by the number of its divisors (50).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 122177 + ... + 142176.

Almost surely, 2^2643530000 is an apocalyptic number.

2643530000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643530000 is an abundant number, since it is smaller than the sum of its proper divisors (3756744694).

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

2643530000 is an equidigital number, since it uses as much as digits as its factorization.

2643530000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264381 (or 264360 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 2643530000 is about 51415.2701052907. The cubic root of 2643530000 is about 1382.7003765473.

Adding to 2643530000 its reverse (353462), we get a palindrome (2643883462).

The spelling of 2643530000 in words is "two billion, six hundred forty-three million, five hundred thirty thousand".