304997947856 has 80 divisors (see below), whose sum is σ = 677528064000. Its totient is φ = 130293081984.

The previous prime is 304997947829. The next prime is 304997947861. The reversal of 304997947856 is 658749799403.

It is a self number, because there is not a number n which added to its sum of digits gives 304997947856.

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 15 ways as a sum of consecutive naturals, for example, 48233111 + ... + 48239433.

It is an arithmetic number, because the mean of its divisors is an integer number (8469100800).

Almost surely, 2^304997947856 is an apocalyptic number.

It is an amenable number.

304997947856 is an abundant number, since it is smaller than the sum of its proper divisors (372530116144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

304997947856 is a wasteful number, since it uses less digits than its factorization.

304997947856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656 (or 7650 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 71.

The spelling of 304997947856 in words is "three hundred four billion, nine hundred ninety-seven million, nine hundred forty-seven thousand, eight hundred fifty-six".