6445341715 has 4 divisors (see below), whose sum is σ = 7734410064. Its totient is φ = 5156273368.

The previous prime is 6445341689. The next prime is 6445341743. The reversal of 6445341715 is 5171435446.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5171435446 = 2 ⋅2585717723.

It is a cyclic number.

It is not a de Polignac number, because 6445341715 - 2⁷ = 6445341587 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 644534167 + ... + 644534176.

It is an arithmetic number, because the mean of its divisors is an integer number (1933602516).

Almost surely, 2^6445341715 is an apocalyptic number.

6445341715 is a deficient number, since it is larger than the sum of its proper divisors (1289068349).

6445341715 is a wasteful number, since it uses less digits than its factorization.

6445341715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289068348.

The product of its digits is 201600, while the sum is 40.

The square root of 6445341715 is about 80282.8855672241. The cubic root of 6445341715 is about 1861.0097530154.

The spelling of 6445341715 in words is "six billion, four hundred forty-five million, three hundred forty-one thousand, seven hundred fifteen".