6756378973 has 2 divisors, whose sum is σ = 6756378974. Its totient is φ = 6756378972.

The previous prime is 6756378949. The next prime is 6756378989. The reversal of 6756378973 is 3798736576.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6740081604 + 16297369 = 82098^2 + 4037^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6756378973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6756378373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3378189486 + 3378189487.

It is an arithmetic number, because the mean of its divisors is an integer number (3378189487).

Almost surely, 2^6756378973 is an apocalyptic number.

It is an amenable number.

6756378973 is a deficient number, since it is larger than the sum of its proper divisors (1).

6756378973 is an equidigital number, since it uses as much as digits as its factorization.

6756378973 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40007520, while the sum is 61.

The square root of 6756378973 is about 82197.1956516766. The cubic root of 6756378973 is about 1890.4767209122.

The spelling of 6756378973 in words is "six billion, seven hundred fifty-six million, three hundred seventy-eight thousand, nine hundred seventy-three".