6945862811 has 2 divisors, whose sum is σ = 6945862812. Its totient is φ = 6945862810.

The previous prime is 6945862793. The next prime is 6945862817. The reversal of 6945862811 is 1182685496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6945862811 - 2²² = 6941668507 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6945862811.

It is not a weakly prime, because it can be changed into another prime (6945862817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472931405 + 3472931406.

It is an arithmetic number, because the mean of its divisors is an integer number (3472931406).

Almost surely, 2^6945862811 is an apocalyptic number.

6945862811 is a deficient number, since it is larger than the sum of its proper divisors (1).

6945862811 is an equidigital number, since it uses as much as digits as its factorization.

6945862811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 829440, while the sum is 50.

The square root of 6945862811 is about 83341.8430981701. The cubic root of 6945862811 is about 1907.9869520319.

The spelling of 6945862811 in words is "six billion, nine hundred forty-five million, eight hundred sixty-two thousand, eight hundred eleven".