6956842643 has 2 divisors, whose sum is σ = 6956842644. Its totient is φ = 6956842642.

The previous prime is 6956842597. The next prime is 6956842657. The reversal of 6956842643 is 3462486596.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6956842643 - 2¹² = 6956838547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6956842843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3478421321 + 3478421322.

It is an arithmetic number, because the mean of its divisors is an integer number (3478421322).

Almost surely, 2^6956842643 is an apocalyptic number.

6956842643 is a deficient number, since it is larger than the sum of its proper divisors (1).

6956842643 is an equidigital number, since it uses as much as digits as its factorization.

6956842643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7464960, while the sum is 53.

The square root of 6956842643 is about 83407.6893517618. The cubic root of 6956842643 is about 1908.9917874622.

It can be divided in two parts, 69568 and 42643, that added together give a palindrome (112211).

The spelling of 6956842643 in words is "six billion, nine hundred fifty-six million, eight hundred forty-two thousand, six hundred forty-three".