30505310208 has 144 divisors (see below), whose sum is σ = 91369572840. Its totient is φ = 10168270848.

The previous prime is 30505310189. The next prime is 30505310243. The reversal of 30505310208 is 80201350503.

It is a tau number, because it is divible by the number of its divisors (144).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 467016 + ... + 528312.

Almost surely, 2^30505310208 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 30505310208, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45684786420).

30505310208 is an abundant number, since it is smaller than the sum of its proper divisors (60864262632).

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

30505310208 is an frugal number, since it uses more digits than its factorization.

30505310208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61334 (or 61302 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The spelling of 30505310208 in words is "thirty billion, five hundred five million, three hundred ten thousand, two hundred eight".