30683705472 has 128 divisors (see below), whose sum is σ = 103496707200. Its totient is φ = 8766766080.

The previous prime is 30683705449. The next prime is 30683705477. The reversal of 30683705472 is 27450738603.

30683705472 is a `hidden beast` number, since 30 + 6 + 8 + 3 + 70 + 547 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (30683705477) 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, 609979 + ... + 658362.

It is an arithmetic number, because the mean of its divisors is an integer number (808568025).

Almost surely, 2^30683705472 is an apocalyptic number.

30683705472 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30683705472 is an abundant number, since it is smaller than the sum of its proper divisors (72813001728).

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

30683705472 is a wasteful number, since it uses less digits than its factorization.

30683705472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1268371 (or 1268353 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The spelling of 30683705472 in words is "thirty billion, six hundred eighty-three million, seven hundred five thousand, four hundred seventy-two".