6465940826 has 16 divisors (see below), whose sum is σ = 10147762944. Its totient is φ = 3084107664.

The previous prime is 6465940813. The next prime is 6465940853. The reversal of 6465940826 is 6280495646.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 171266 + ... + 205581.

It is an arithmetic number, because the mean of its divisors is an integer number (634235184).

Almost surely, 2^6465940826 is an apocalyptic number.

6465940826 is a deficient number, since it is larger than the sum of its proper divisors (3681822118).

6465940826 is a wasteful number, since it uses less digits than its factorization.

6465940826 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377245.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The square root of 6465940826 is about 80411.0740259077. The cubic root of 6465940826 is about 1862.9902210399.

The spelling of 6465940826 in words is "six billion, four hundred sixty-five million, nine hundred forty thousand, eight hundred twenty-six".