30643525000 has 96 divisors (see below), whose sum is σ = 78345610560. Its totient is φ = 11143000000.

The previous prime is 30643524973. The next prime is 30643525021. The reversal of 30643525000 is 52534603.

It is a super-4 number, since 4×30643525000⁴ (a number of 43 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30643525000.

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 23 ways as a sum of consecutive naturals, for example, 219285 + ... + 330715.

It is an arithmetic number, because the mean of its divisors is an integer number (816100110).

Almost surely, 2^30643525000 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 30643525000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39172805280).

30643525000 is an abundant number, since it is smaller than the sum of its proper divisors (47702085560).

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

30643525000 is a wasteful number, since it uses less digits than its factorization.

30643525000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111473 (or 111449 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 28.

The spelling of 30643525000 in words is "thirty billion, six hundred forty-three million, five hundred twenty-five thousand".