30648715812 has 648 divisors, whose sum is σ = 102060241920. Its totient is φ = 7709644800.

The previous prime is 30648715807. The next prime is 30648715813. The reversal of 30648715812 is 21851784603.

30648715812 is a `hidden beast` number, since 3 + 0 + 6 + 487 + 158 + 12 = 666.

It is not an unprimeable number, because it can be changed into a prime (30648715813) by changing a digit.

It is a polite number, since it can be written in 215 ways as a sum of consecutive naturals, for example, 387958389 + ... + 387958467.

Almost surely, 2^30648715812 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 30648715812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51030120960).

30648715812 is an abundant number, since it is smaller than the sum of its proper divisors (71411526108).

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

30648715812 is a wasteful number, since it uses less digits than its factorization.

30648715812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185 (or 156 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 45.

The spelling of 30648715812 in words is "thirty billion, six hundred forty-eight million, seven hundred fifteen thousand, eight hundred twelve".