6340613513 has 8 divisors (see below), whose sum is σ = 6835134600. Its totient is φ = 5847061248.

The previous prime is 6340613491. The next prime is 6340613569. The reversal of 6340613513 is 3153160436.

It can be written as a sum of positive squares in 4 ways, for example, as 564157504 + 5776456009 = 23752^2 + 76003^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 6340613513 - 2¹⁰ = 6340612489 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6340613513.

It is not an unprimeable number, because it can be changed into a prime (6340613813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 228578 + ... + 254811.

It is an arithmetic number, because the mean of its divisors is an integer number (854391825).

Almost surely, 2^6340613513 is an apocalyptic number.

It is an amenable number.

6340613513 is a deficient number, since it is larger than the sum of its proper divisors (494521087).

6340613513 is a wasteful number, since it uses less digits than its factorization.

6340613513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484411.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 6340613513 is about 79627.9694140193. The cubic root of 6340613513 is about 1850.8750195200.

Adding to 6340613513 its reverse (3153160436), we get a palindrome (9493773949).

The spelling of 6340613513 in words is "six billion, three hundred forty million, six hundred thirteen thousand, five hundred thirteen".