30331728865 has 96 divisors (see below), whose sum is σ = 41721039360. Its totient is φ = 21078220800.

The previous prime is 30331728853. The next prime is 30331728893. The reversal of 30331728865 is 56882713303.

It is not a de Polignac number, because 30331728865 - 2⁹ = 30331728353 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 231539850 + ... + 231539980.

It is an arithmetic number, because the mean of its divisors is an integer number (434594160).

Almost surely, 2^30331728865 is an apocalyptic number.

It is an amenable number.

30331728865 is a deficient number, since it is larger than the sum of its proper divisors (11389310495).

30331728865 is a wasteful number, since it uses less digits than its factorization.

30331728865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331 (or 302 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 30331728865 in words is "thirty billion, three hundred thirty-one million, seven hundred twenty-eight thousand, eight hundred sixty-five".