6801564317 has 2 divisors, whose sum is σ = 6801564318. Its totient is φ = 6801564316.

The previous prime is 6801564313. The next prime is 6801564337. The reversal of 6801564317 is 7134651086.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6609852601 + 191711716 = 81301^2 + 13846^2 .

It is a cyclic number.

It is not a de Polignac number, because 6801564317 - 2² = 6801564313 is a prime.

It is a super-2 number, since 2×6801564317² = 92522554316575352978, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6801564313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3400782158 + 3400782159.

It is an arithmetic number, because the mean of its divisors is an integer number (3400782159).

Almost surely, 2^6801564317 is an apocalyptic number.

It is an amenable number.

6801564317 is a deficient number, since it is larger than the sum of its proper divisors (1).

6801564317 is an equidigital number, since it uses as much as digits as its factorization.

6801564317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 6801564317 is about 82471.5970319479. The cubic root of 6801564317 is about 1894.6817404690.

The spelling of 6801564317 in words is "six billion, eight hundred one million, five hundred sixty-four thousand, three hundred seventeen".