6747143969 has 2 divisors, whose sum is σ = 6747143970. Its totient is φ = 6747143968.

The previous prime is 6747143939. The next prime is 6747143981. The reversal of 6747143969 is 9693417476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6113363344 + 633780625 = 78188^2 + 25175^2 .

It is a cyclic number.

It is not a de Polignac number, because 6747143969 - 2²⁰ = 6746095393 is a prime.

It is a super-2 number, since 2×6747143969² = 91047903476826145922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6747143939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3373571984 + 3373571985.

It is an arithmetic number, because the mean of its divisors is an integer number (3373571985).

Almost surely, 2^6747143969 is an apocalyptic number.

It is an amenable number.

6747143969 is a deficient number, since it is larger than the sum of its proper divisors (1).

6747143969 is an equidigital number, since it uses as much as digits as its factorization.

6747143969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6858432, while the sum is 56.

The square root of 6747143969 is about 82141.0005356643. Note that the first 3 decimals coincide. The cubic root of 6747143969 is about 1889.6149910494.

The spelling of 6747143969 in words is "six billion, seven hundred forty-seven million, one hundred forty-three thousand, nine hundred sixty-nine".