30655412928 has 840 divisors, whose sum is σ = 116041749120. Its totient is φ = 7942717440.

The previous prime is 30655412927. The next prime is 30655412939. The reversal of 30655412928 is 82921455603.

30655412928 is a `hidden beast` number, since 3 + 0 + 6 + 554 + 1 + 2 + 92 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (30655412927) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 133866318 + ... + 133866546.

Almost surely, 2^30655412928 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 30655412928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58020874560).

30655412928 is an abundant number, since it is smaller than the sum of its proper divisors (85386336192).

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

30655412928 is a wasteful number, since it uses less digits than its factorization.

30655412928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315 (or 289 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 45.

The spelling of 30655412928 in words is "thirty billion, six hundred fifty-five million, four hundred twelve thousand, nine hundred twenty-eight".