30752864208 has 120 divisors (see below), whose sum is σ = 94283429760. Its totient is φ = 9279943680.

The previous prime is 30752864179. The next prime is 30752864209. The reversal of 30752864208 is 80246825703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30752864209) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 337960 + ... + 419192.

It is an arithmetic number, because the mean of its divisors is an integer number (785695248).

Almost surely, 2^30752864208 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30752864208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47141714880).

30752864208 is an abundant number, since it is smaller than the sum of its proper divisors (63530565552).

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

30752864208 is a wasteful number, since it uses less digits than its factorization.

30752864208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81497 (or 81488 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 30752864208 in words is "thirty billion, seven hundred fifty-two million, eight hundred sixty-four thousand, two hundred eight".