6349717613 has 4 divisors (see below), whose sum is σ = 6351008700. Its totient is φ = 6348426528.

The previous prime is 6349717573. The next prime is 6349717639. The reversal of 6349717613 is 3167179436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1770894724 + 4578822889 = 42082^2 + 67667^2 .

It is a cyclic number.

It is not a de Polignac number, because 6349717613 - 2³² = 2054750317 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 (6349717643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 638138 + ... + 648011.

It is an arithmetic number, because the mean of its divisors is an integer number (1587752175).

Almost surely, 2^6349717613 is an apocalyptic number.

It is an amenable number.

6349717613 is a deficient number, since it is larger than the sum of its proper divisors (1291087).

6349717613 is a wasteful number, since it uses less digits than its factorization.

6349717613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291086.

The product of its digits is 571536, while the sum is 47.

The square root of 6349717613 is about 79685.1153792225. The cubic root of 6349717613 is about 1851.7604487068.

The spelling of 6349717613 in words is "six billion, three hundred forty-nine million, seven hundred seventeen thousand, six hundred thirteen".