6945401699 has 2 divisors, whose sum is σ = 6945401700. Its totient is φ = 6945401698.

The previous prime is 6945401657. The next prime is 6945401791. The reversal of 6945401699 is 9961045496.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6945401699 - 2⁸ = 6945401443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6945401699.

It is not a weakly prime, because it can be changed into another prime (6945407699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472700849 + 3472700850.

It is an arithmetic number, because the mean of its divisors is an integer number (3472700850).

Almost surely, 2^6945401699 is an apocalyptic number.

6945401699 is a deficient number, since it is larger than the sum of its proper divisors (1).

6945401699 is an equidigital number, since it uses as much as digits as its factorization.

6945401699 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2099520, while the sum is 53.

The square root of 6945401699 is about 83339.0766627517. The cubic root of 6945401699 is about 1907.9447295285.

The spelling of 6945401699 in words is "six billion, nine hundred forty-five million, four hundred one thousand, six hundred ninety-nine".