6268746689 has 4 divisors (see below), whose sum is σ = 6282345300. Its totient is φ = 6255148080.

The previous prime is 6268746647. The next prime is 6268746707. The reversal of 6268746689 is 9866478626.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9866478626 = 2 ⋅4933239313.

It can be written as a sum of positive squares in 2 ways, for example, as 880012225 + 5388734464 = 29665^2 + 73408^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6268746689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6268746629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6798614 + ... + 6799535.

It is an arithmetic number, because the mean of its divisors is an integer number (1570586325).

Almost surely, 2^6268746689 is an apocalyptic number.

It is an amenable number.

6268746689 is a deficient number, since it is larger than the sum of its proper divisors (13598611).

6268746689 is a wasteful number, since it uses less digits than its factorization.

6268746689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13598610.

The product of its digits is 41803776, while the sum is 62.

The square root of 6268746689 is about 79175.4172013006. The cubic root of 6268746689 is about 1843.8556014911.

The spelling of 6268746689 in words is "six billion, two hundred sixty-eight million, seven hundred forty-six thousand, six hundred eighty-nine".