6798756564 has 18 divisors (see below), whose sum is σ = 17185745850. Its totient is φ = 2266252176.

The previous prime is 6798756557. The next prime is 6798756577. The reversal of 6798756564 is 4656578976.

6798756564 is a `hidden beast` number, since 6 + 7 + 9 + 8 + 7 + 565 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4713920964 + 2084835600 = 68658^2 + 45660^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

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 5 ways as a sum of consecutive naturals, for example, 94427139 + ... + 94427210.

Almost surely, 2^6798756564 is an apocalyptic number.

It is an amenable number.

6798756564 is an abundant number, since it is smaller than the sum of its proper divisors (10386989286).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6798756564 is a wasteful number, since it uses less digits than its factorization.

6798756564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188854359 (or 188854354 counting only the distinct ones).

The product of its digits is 76204800, while the sum is 63.

The square root of 6798756564 is about 82454.5727294733. The cubic root of 6798756564 is about 1894.4209901337.

The spelling of 6798756564 in words is "six billion, seven hundred ninety-eight million, seven hundred fifty-six thousand, five hundred sixty-four".