6945181328 has 10 divisors (see below), whose sum is σ = 13456288854. Its totient is φ = 3472590656.

The previous prime is 6945181277. The next prime is 6945181333. The reversal of 6945181328 is 8231815496.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 6871083664 + 74097664 = 82892^2 + 8608^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 217036901 + ... + 217036932.

Almost surely, 2^6945181328 is an apocalyptic number.

It is an amenable number.

6945181328 is a deficient number, since it is larger than the sum of its proper divisors (6511107526).

6945181328 is a wasteful number, since it uses less digits than its factorization.

6945181328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434073841 (or 434073835 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 6945181328 is about 83337.7545173855. The cubic root of 6945181328 is about 1907.9245502236.

The spelling of 6945181328 in words is "six billion, nine hundred forty-five million, one hundred eighty-one thousand, three hundred twenty-eight".