6513059813 has 8 divisors (see below), whose sum is σ = 7146406008. Its totient is φ = 5898619584.

The previous prime is 6513059807. The next prime is 6513059821. The reversal of 6513059813 is 3189503156.

It can be written as a sum of positive squares in 4 ways, for example, as 992124004 + 5520935809 = 31498^2 + 74303^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6513059813 - 2¹⁶ = 6512994277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6513059863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4725770 + ... + 4727147.

It is an arithmetic number, because the mean of its divisors is an integer number (893300751).

Almost surely, 2^6513059813 is an apocalyptic number.

It is an amenable number.

6513059813 is a deficient number, since it is larger than the sum of its proper divisors (633346195).

6513059813 is a wasteful number, since it uses less digits than its factorization.

6513059813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9452983.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 6513059813 is about 80703.5303626799. The cubic root of 6513059813 is about 1867.5046370583.

The spelling of 6513059813 in words is "six billion, five hundred thirteen million, fifty-nine thousand, eight hundred thirteen".