6513306240 has 128 divisors (see below), whose sum is σ = 23727093120. Its totient is φ = 1488752640.

The previous prime is 6513306199. The next prime is 6513306251. The reversal of 6513306240 is 426033156.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 6513306198 and 6513306207.

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 15 ways as a sum of consecutive naturals, for example, 228871 + ... + 255750.

It is an arithmetic number, because the mean of its divisors is an integer number (185367915).

Almost surely, 2^6513306240 is an apocalyptic number.

6513306240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6513306240 is an abundant number, since it is smaller than the sum of its proper divisors (17213786880).

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

6513306240 is a wasteful number, since it uses less digits than its factorization.

6513306240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484650 (or 484638 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 6513306240 is about 80705.0570906186. The cubic root of 6513306240 is about 1867.5281896216.

Adding to 6513306240 its reverse (426033156), we get a palindrome (6939339396).

The spelling of 6513306240 in words is "six billion, five hundred thirteen million, three hundred six thousand, two hundred forty".