6511317361 has 2 divisors, whose sum is σ = 6511317362. Its totient is φ = 6511317360.

The previous prime is 6511317353. The next prime is 6511317401. The reversal of 6511317361 is 1637131156.

6511317361 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4585862961 + 1925454400 = 67719^2 + 43880^2 .

It is a cyclic number.

It is not a de Polignac number, because 6511317361 - 2³ = 6511317353 is a prime.

It is a super-3 number, since 3×6511317361³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (6511317311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3255658680 + 3255658681.

It is an arithmetic number, because the mean of its divisors is an integer number (3255658681).

Almost surely, 2^6511317361 is an apocalyptic number.

It is an amenable number.

6511317361 is a deficient number, since it is larger than the sum of its proper divisors (1).

6511317361 is an equidigital number, since it uses as much as digits as its factorization.

6511317361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11340, while the sum is 34.

The square root of 6511317361 is about 80692.7342516041. The cubic root of 6511317361 is about 1867.3380831132.

The spelling of 6511317361 in words is "six billion, five hundred eleven million, three hundred seventeen thousand, three hundred sixty-one".