6821327306625 has 64 divisors (see below), whose sum is σ = 12344847330816. Its totient is φ = 3324942240000.

The previous prime is 6821327306611. The next prime is 6821327306663. The reversal of 6821327306625 is 5266037231286.

It is not a de Polignac number, because 6821327306625 - 2⁹ = 6821327306113 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6434589 + ... + 7419338.

It is an arithmetic number, because the mean of its divisors is an integer number (192888239544).

Almost surely, 2^{6821327306625} is an apocalyptic number.

6821327306625 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6821327306625 is a deficient number, since it is larger than the sum of its proper divisors (5523520024191).

6821327306625 is a wasteful number, since it uses less digits than its factorization.

6821327306625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13854059 (or 13854049 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 51.

The spelling of 6821327306625 in words is "six trillion, eight hundred twenty-one billion, three hundred twenty-seven million, three hundred six thousand, six hundred twenty-five".