30680378952 has 64 divisors (see below), whose sum is σ = 78137558400. Its totient is φ = 10036016640.

The previous prime is 30680378917. The next prime is 30680378959. The reversal of 30680378952 is 25987308603.

It is a junction number, because it is equal to n+sod(n) for n = 30680378895 and 30680378904.

It is not an unprimeable number, because it can be changed into a prime (30680378959) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618828 + ... + 666564.

It is an arithmetic number, because the mean of its divisors is an integer number (1220899350).

Almost surely, 2^30680378952 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 30680378952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39068779200).

30680378952 is an abundant number, since it is smaller than the sum of its proper divisors (47457179448).

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

30680378952 is a wasteful number, since it uses less digits than its factorization.

30680378952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48246 (or 48242 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 30680378952 in words is "thirty billion, six hundred eighty million, three hundred seventy-eight thousand, nine hundred fifty-two".