30245731568 has 40 divisors (see below), whose sum is σ = 63121220400. Its totient is φ = 13956839424.

The previous prime is 30245731559. The next prime is 30245731573. The reversal of 30245731568 is 86513754203.

It is a Cunningham number, because it is equal to 173913²-1.

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 7 ways as a sum of consecutive naturals, for example, 1380443 + ... + 1402181.

It is an arithmetic number, because the mean of its divisors is an integer number (1578030510).

Almost surely, 2^30245731568 is an apocalyptic number.

It is an amenable number.

30245731568 is an abundant number, since it is smaller than the sum of its proper divisors (32875488832).

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

30245731568 is a wasteful number, since it uses less digits than its factorization.

30245731568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28449 (or 28443 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 44.

The spelling of 30245731568 in words is "thirty billion, two hundred forty-five million, seven hundred thirty-one thousand, five hundred sixty-eight".