6743260861 has 4 divisors (see below), whose sum is σ = 6870492252. Its totient is φ = 6616029472.

The previous prime is 6743260847. The next prime is 6743260871. The reversal of 6743260861 is 1680623476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3962702500 + 2780558361 = 62950^2 + 52731^2 .

It is a cyclic number.

It is not a de Polignac number, because 6743260861 - 2¹¹ = 6743258813 is a prime.

It is a super-2 number, since 2×6743260861² = 90943134078988922642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6743260871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63615616 + ... + 63615721.

It is an arithmetic number, because the mean of its divisors is an integer number (1717623063).

Almost surely, 2^6743260861 is an apocalyptic number.

It is an amenable number.

6743260861 is a deficient number, since it is larger than the sum of its proper divisors (127231391).

6743260861 is a wasteful number, since it uses less digits than its factorization.

6743260861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127231390.

The product of its (nonzero) digits is 290304, while the sum is 43.

The square root of 6743260861 is about 82117.3602900142. The cubic root of 6743260861 is about 1889.2524185194.

The spelling of 6743260861 in words is "six billion, seven hundred forty-three million, two hundred sixty thousand, eight hundred sixty-one".