6802171081 has 2 divisors, whose sum is σ = 6802171082. Its totient is φ = 6802171080.

The previous prime is 6802171069. The next prime is 6802171097. The reversal of 6802171081 is 1801712086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4189325625 + 2612845456 = 64725^2 + 51116^2 .

It is a cyclic number.

It is not a de Polignac number, because 6802171081 - 2¹⁵ = 6802138313 is a prime.

It is a super-2 number, since 2×6802171081² = 92539062830385417122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6802171781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3401085540 + 3401085541.

It is an arithmetic number, because the mean of its divisors is an integer number (3401085541).

Almost surely, 2^6802171081 is an apocalyptic number.

It is an amenable number.

6802171081 is a deficient number, since it is larger than the sum of its proper divisors (1).

6802171081 is an equidigital number, since it uses as much as digits as its factorization.

6802171081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 34.

The square root of 6802171081 is about 82475.2755739561. The cubic root of 6802171081 is about 1894.7380799832.

The spelling of 6802171081 in words is "six billion, eight hundred two million, one hundred seventy-one thousand, eighty-one".