30683789928 has 384 divisors, whose sum is σ = 99545241600. Its totient is φ = 8682422400.

The previous prime is 30683789911. The next prime is 30683790019. The reversal of 30683789928 is 82998738603.

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, 71191873 + ... + 71192303.

It is an arithmetic number, because the mean of its divisors is an integer number (259232400).

Almost surely, 2^30683789928 is an apocalyptic number.

30683789928 is a gapful number since it is divisible by the number (38) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30683789928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49772620800).

30683789928 is an abundant number, since it is smaller than the sum of its proper divisors (68861451672).

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

30683789928 is a wasteful number, since it uses less digits than its factorization.

30683789928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578 (or 549 counting only the distinct ones).

The product of its (nonzero) digits is 31352832, while the sum is 63.

The spelling of 30683789928 in words is "thirty billion, six hundred eighty-three million, seven hundred eighty-nine thousand, nine hundred twenty-eight".