6945138825 has 12 divisors (see below), whose sum is σ = 11482629648. Its totient is φ = 3704074000.

The previous prime is 6945138791. The next prime is 6945138829. The reversal of 6945138825 is 5288315496.

It is not a de Polignac number, because 6945138825 - 2¹¹ = 6945136777 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (6945138829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46300851 + ... + 46301000.

It is an arithmetic number, because the mean of its divisors is an integer number (956885804).

Almost surely, 2^6945138825 is an apocalyptic number.

It is an amenable number.

6945138825 is a deficient number, since it is larger than the sum of its proper divisors (4537490823).

6945138825 is a wasteful number, since it uses less digits than its factorization.

6945138825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92601864 (or 92601859 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 51.

The square root of 6945138825 is about 83337.4995125244. The cubic root of 6945138825 is about 1907.9206581878.

The spelling of 6945138825 in words is "six billion, nine hundred forty-five million, one hundred thirty-eight thousand, eight hundred twenty-five".