6971327985 has 16 divisors (see below), whose sum is σ = 11227996800. Its totient is φ = 3693417600.

The previous prime is 6971327971. The next prime is 6971328011. The reversal of 6971327985 is 5897231796.

It is not a de Polignac number, because 6971327985 - 2⁸ = 6971327729 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1536660 + ... + 1541189.

It is an arithmetic number, because the mean of its divisors is an integer number (701749800).

Almost surely, 2^6971327985 is an apocalyptic number.

It is an amenable number.

6971327985 is a deficient number, since it is larger than the sum of its proper divisors (4256668815).

6971327985 is a wasteful number, since it uses less digits than its factorization.

6971327985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3078008.

The product of its digits is 5715360, while the sum is 57.

The square root of 6971327985 is about 83494.4787695570. The cubic root of 6971327985 is about 1910.3158185951.

The spelling of 6971327985 in words is "six billion, nine hundred seventy-one million, three hundred twenty-seven thousand, nine hundred eighty-five".