6945401339 has 2 divisors, whose sum is σ = 6945401340. Its totient is φ = 6945401338.

The previous prime is 6945401329. The next prime is 6945401347. The reversal of 6945401339 is 9331045496.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6945401339 - 2⁸ = 6945401083 is a prime.

It is a super-4 number, since 4×6945401339⁴ (a number of 40 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6945401339.

It is not a weakly prime, because it can be changed into another prime (6945401329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3472700669 + 3472700670.

It is an arithmetic number, because the mean of its divisors is an integer number (3472700670).

Almost surely, 2^6945401339 is an apocalyptic number.

6945401339 is a deficient number, since it is larger than the sum of its proper divisors (1).

6945401339 is an equidigital number, since it uses as much as digits as its factorization.

6945401339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 349920, while the sum is 44.

The square root of 6945401339 is about 83339.0745029005. The cubic root of 6945401339 is about 1907.9446965637.

The spelling of 6945401339 in words is "six billion, nine hundred forty-five million, four hundred one thousand, three hundred thirty-nine".