30875648648 has 64 divisors (see below), whose sum is σ = 63006672960. Its totient is φ = 14099417856.

The previous prime is 30875648633. The next prime is 30875648669. The reversal of 30875648648 is 84684657803.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13764215 + ... + 13766457.

It is an arithmetic number, because the mean of its divisors is an integer number (984479265).

Almost surely, 2^30875648648 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 30875648648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31503336480).

30875648648 is an abundant number, since it is smaller than the sum of its proper divisors (32131024312).

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

30875648648 is a wasteful number, since it uses less digits than its factorization.

30875648648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3606 (or 3602 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 59.

The spelling of 30875648648 in words is "thirty billion, eight hundred seventy-five million, six hundred forty-eight thousand, six hundred forty-eight".