6456785936 has 20 divisors (see below), whose sum is σ = 12848132652. Its totient is φ = 3141138816.

The previous prime is 6456785843. The next prime is 6456785969. The reversal of 6456785936 is 6395876546.

It can be written as a sum of positive squares in 2 ways, for example, as 6155971600 + 300814336 = 78460^2 + 17344^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5452775 + ... + 5453958.

Almost surely, 2^6456785936 is an apocalyptic number.

It is an amenable number.

6456785936 is a deficient number, since it is larger than the sum of its proper divisors (6391346716).

6456785936 is a wasteful number, since it uses less digits than its factorization.

6456785936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10906778 (or 10906772 counting only the distinct ones).

The product of its digits is 32659200, while the sum is 59.

The square root of 6456785936 is about 80354.1283071380. The cubic root of 6456785936 is about 1862.1105590929.

The spelling of 6456785936 in words is "six billion, four hundred fifty-six million, seven hundred eighty-five thousand, nine hundred thirty-six".