6705340861 has 2 divisors, whose sum is σ = 6705340862. Its totient is φ = 6705340860.

The previous prime is 6705340847. The next prime is 6705340883. The reversal of 6705340861 is 1680435076.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4102402500 + 2602938361 = 64050^2 + 51019^2 .

It is a cyclic number.

It is not a de Polignac number, because 6705340861 - 2¹⁷ = 6705209789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6705340841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3352670430 + 3352670431.

It is an arithmetic number, because the mean of its divisors is an integer number (3352670431).

Almost surely, 2^6705340861 is an apocalyptic number.

It is an amenable number.

6705340861 is a deficient number, since it is larger than the sum of its proper divisors (1).

6705340861 is an equidigital number, since it uses as much as digits as its factorization.

6705340861 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 40.

The square root of 6705340861 is about 81886.1457207506. The cubic root of 6705340861 is about 1885.7044238746.

The spelling of 6705340861 in words is "six billion, seven hundred five million, three hundred forty thousand, eight hundred sixty-one".