6345874813 has 4 divisors (see below), whose sum is σ = 6348676320. Its totient is φ = 6343073308.

The previous prime is 6345874781. The next prime is 6345874817. The reversal of 6345874813 is 3184785436.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6345874813 - 2⁵ = 6345874781 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 (6345874817) 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, 1397353 + ... + 1401886.

It is an arithmetic number, because the mean of its divisors is an integer number (1587169080).

Almost surely, 2^6345874813 is an apocalyptic number.

It is an amenable number.

6345874813 is a deficient number, since it is larger than the sum of its proper divisors (2801507).

6345874813 is a wasteful number, since it uses less digits than its factorization.

6345874813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2801506.

The product of its digits is 1935360, while the sum is 49.

The square root of 6345874813 is about 79660.9993221275. Note that the first 3 decimals coincide. The cubic root of 6345874813 is about 1851.3868162886.

The spelling of 6345874813 in words is "six billion, three hundred forty-five million, eight hundred seventy-four thousand, eight hundred thirteen".