6864661925 has 24 divisors (see below), whose sum is σ = 9302490912. Its totient is φ = 4983624000.

The previous prime is 6864661913. The next prime is 6864661957. The reversal of 6864661925 is 5291664686.

It is not a de Polignac number, because 6864661925 - 2⁶ = 6864661861 is a prime.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 135167 + ... + 178883.

It is an arithmetic number, because the mean of its divisors is an integer number (387603788).

Almost surely, 2^6864661925 is an apocalyptic number.

It is an amenable number.

6864661925 is a deficient number, since it is larger than the sum of its proper divisors (2437828987).

6864661925 is a wasteful number, since it uses less digits than its factorization.

6864661925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44309 (or 44304 counting only the distinct ones).

The product of its digits is 3732480, while the sum is 53.

The square root of 6864661925 is about 82853.2553675473. The cubic root of 6864661925 is about 1900.5226563057.

The spelling of 6864661925 in words is "six billion, eight hundred sixty-four million, six hundred sixty-one thousand, nine hundred twenty-five".