6756574549 has 2 divisors, whose sum is σ = 6756574550. Its totient is φ = 6756574548.

The previous prime is 6756574547. The next prime is 6756574597. The reversal of 6756574549 is 9454756576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5272938225 + 1483636324 = 72615^2 + 38518^2 .

It is a cyclic number.

It is not a de Polignac number, because 6756574549 - 2¹ = 6756574547 is a prime.

Together with 6756574547, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6756574493 and 6756574502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6756574543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3378287274 + 3378287275.

It is an arithmetic number, because the mean of its divisors is an integer number (3378287275).

Almost surely, 2^6756574549 is an apocalyptic number.

It is an amenable number.

6756574549 is a deficient number, since it is larger than the sum of its proper divisors (1).

6756574549 is an equidigital number, since it uses as much as digits as its factorization.

6756574549 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752000, while the sum is 58.

The square root of 6756574549 is about 82198.3853186910. The cubic root of 6756574549 is about 1890.4949618619.

The spelling of 6756574549 in words is "six billion, seven hundred fifty-six million, five hundred seventy-four thousand, five hundred forty-nine".