6978343751 has 2 divisors, whose sum is σ = 6978343752. Its totient is φ = 6978343750.

The previous prime is 6978343717. The next prime is 6978343763. The reversal of 6978343751 is 1573438796.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6978343751 - 2¹⁰ = 6978342727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6978343693 and 6978343702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6978340751) 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 as a sum of consecutive naturals, namely, 3489171875 + 3489171876.

It is an arithmetic number, because the mean of its divisors is an integer number (3489171876).

Almost surely, 2^6978343751 is an apocalyptic number.

6978343751 is a deficient number, since it is larger than the sum of its proper divisors (1).

6978343751 is an equidigital number, since it uses as much as digits as its factorization.

6978343751 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3810240, while the sum is 53.

The square root of 6978343751 is about 83536.4815574609. The cubic root of 6978343751 is about 1910.9564347202.

The spelling of 6978343751 in words is "six billion, nine hundred seventy-eight million, three hundred forty-three thousand, seven hundred fifty-one".