30797317568 has 28 divisors (see below), whose sum is σ = 61131797472. Its totient is φ = 15394030080.

The previous prime is 30797317553. The next prime is 30797317597. The reversal of 30797317568 is 86571379703.

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 3 ways as a sum of consecutive naturals, for example, 147428 + ... + 288668.

Almost surely, 2^30797317568 is an apocalyptic number.

It is an amenable number.

30797317568 is a deficient number, since it is larger than the sum of its proper divisors (30334479904).

30797317568 is a wasteful number, since it uses less digits than its factorization.

30797317568 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144660 (or 144650 counting only the distinct ones).

The product of its (nonzero) digits is 6667920, while the sum is 56.

The spelling of 30797317568 in words is "thirty billion, seven hundred ninety-seven million, three hundred seventeen thousand, five hundred sixty-eight".