30206869728 has 192 divisors, whose sum is σ = 92106201600. Its totient is φ = 8489705472.

The previous prime is 30206869673. The next prime is 30206869729. The reversal of 30206869728 is 82796860203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30206869729) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28795348 + ... + 28796396.

It is an arithmetic number, because the mean of its divisors is an integer number (479719800).

Almost surely, 2^30206869728 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 30206869728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46053100800).

30206869728 is an abundant number, since it is smaller than the sum of its proper divisors (61899331872).

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

30206869728 is a wasteful number, since it uses less digits than its factorization.

30206869728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729 (or 1721 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 30206869728 in words is "thirty billion, two hundred six million, eight hundred sixty-nine thousand, seven hundred twenty-eight".