6809956456 has 16 divisors (see below), whose sum is σ = 12784083300. Its totient is φ = 3400867584.

The previous prime is 6809956427. The next prime is 6809956481. The reversal of 6809956456 is 6546599086.

It can be written as a sum of positive squares in 2 ways, for example, as 6807900100 + 2056356 = 82510^2 + 1434^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 6809956456.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 506785 + ... + 520048.

Almost surely, 2^6809956456 is an apocalyptic number.

It is an amenable number.

6809956456 is a deficient number, since it is larger than the sum of its proper divisors (5974126844).

6809956456 is a wasteful number, since it uses less digits than its factorization.

6809956456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1027668 (or 1027664 counting only the distinct ones).

The product of its (nonzero) digits is 13996800, while the sum is 58.

The square root of 6809956456 is about 82522.4603123295. The cubic root of 6809956456 is about 1895.4606738957.

The spelling of 6809956456 in words is "six billion, eight hundred nine million, nine hundred fifty-six thousand, four hundred fifty-six".