6800512090 has 16 divisors (see below), whose sum is σ = 12308554440. Its totient is φ = 2705175360.

The previous prime is 6800512087. The next prime is 6800512133. The reversal of 6800512090 is 902150086.

It can be written as a sum of positive squares in 4 ways, for example, as 4652467681 + 2148044409 = 68209^2 + 46347^2 .

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 7 ways as a sum of consecutive naturals, for example, 1876785 + ... + 1880404.

Almost surely, 2^6800512090 is an apocalyptic number.

6800512090 is a deficient number, since it is larger than the sum of its proper divisors (5508042350).

6800512090 is a wasteful number, since it uses less digits than its factorization.

6800512090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3757377.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 6800512090 is about 82465.2174556037. The cubic root of 6800512090 is about 1894.5840306870.

The spelling of 6800512090 in words is "six billion, eight hundred million, five hundred twelve thousand, ninety".