2643013520 has 40 divisors (see below), whose sum is σ = 7022865984. Its totient is φ = 906175872.

The previous prime is 2643013481. The next prime is 2643013567. The reversal of 2643013520 is 253103462.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 2643013520.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2359274 + ... + 2360393.

Almost surely, 2^2643013520 is an apocalyptic number.

2643013520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2643013520 is an abundant number, since it is smaller than the sum of its proper divisors (4379852464).

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

2643013520 is a wasteful number, since it uses less digits than its factorization.

2643013520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4719687 (or 4719681 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2643013520 is about 51410.2472275713. The cubic root of 2643013520 is about 1382.6103222634.

Adding to 2643013520 its reverse (253103462), we get a palindrome (2896116982).

The spelling of 2643013520 in words is "two billion, six hundred forty-three million, thirteen thousand, five hundred twenty".