6343496405 has 4 divisors (see below), whose sum is σ = 7612195692. Its totient is φ = 5074797120.

The previous prime is 6343496387. The next prime is 6343496459. The reversal of 6343496405 is 5046943436.

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 1905671716 + 4437824689 = 43654^2 + 66617^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6343496405 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 634349636 + ... + 634349645.

It is an arithmetic number, because the mean of its divisors is an integer number (1903048923).

Almost surely, 2^6343496405 is an apocalyptic number.

It is an amenable number.

6343496405 is a deficient number, since it is larger than the sum of its proper divisors (1268699287).

6343496405 is a wasteful number, since it uses less digits than its factorization.

6343496405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268699286.

The product of its (nonzero) digits is 933120, while the sum is 44.

The square root of 6343496405 is about 79646.0696142628. The cubic root of 6343496405 is about 1851.1554899767.

The spelling of 6343496405 in words is "six billion, three hundred forty-three million, four hundred ninety-six thousand, four hundred five".