6945068385 has 80 divisors (see below), whose sum is σ = 13675052160. Its totient is φ = 3356432640.

The previous prime is 6945068381. The next prime is 6945068399. The reversal of 6945068385 is 5838605496.

It is a happy number.

It is not a de Polignac number, because 6945068385 - 2² = 6945068381 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6945068381) 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 in 79 ways as a sum of consecutive naturals, for example, 157365 + ... + 196605.

It is an arithmetic number, because the mean of its divisors is an integer number (170938152).

Almost surely, 2^6945068385 is an apocalyptic number.

It is an amenable number.

6945068385 is a deficient number, since it is larger than the sum of its proper divisors (6729983775).

6945068385 is a wasteful number, since it uses less digits than its factorization.

6945068385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39300 (or 39291 counting only the distinct ones).

The product of its (nonzero) digits is 6220800, while the sum is 54.

The square root of 6945068385 is about 83337.0768925813. The cubic root of 6945068385 is about 1907.9142079023.

The spelling of 6945068385 in words is "six billion, nine hundred forty-five million, sixty-eight thousand, three hundred eighty-five".