6800999081 has 2 divisors, whose sum is σ = 6800999082. Its totient is φ = 6800999080.

The previous prime is 6800999069. The next prime is 6800999131. The reversal of 6800999081 is 1809990086.

It is an a-pointer prime, because the next prime (6800999131) can be obtained adding 6800999081 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6787123456 + 13875625 = 82384^2 + 3725^2 .

It is a cyclic number.

It is not a de Polignac number, because 6800999081 - 2¹⁴ = 6800982697 is a prime.

It is a super-2 number, since 2×6800999081² = 92507176999525689122, which contains 22 as substring.

It is a weakly prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400499540 + 3400499541.

It is an arithmetic number, because the mean of its divisors is an integer number (3400499541).

Almost surely, 2^6800999081 is an apocalyptic number.

It is an amenable number.

6800999081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6800999081 is an equidigital number, since it uses as much as digits as its factorization.

6800999081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 279936, while the sum is 50.

The square root of 6800999081 is about 82468.1701082302. The cubic root of 6800999081 is about 1894.6292539161.

The spelling of 6800999081 in words is "six billion, eight hundred million, nine hundred ninety-nine thousand, eighty-one".