30380671872 has 96 divisors (see below), whose sum is σ = 89073227880. Its totient is φ = 9935797248.

The previous prime is 30380671787. The next prime is 30380671883. The reversal of 30380671872 is 27817608303.

30380671872 is a `hidden beast` number, since 30 + 380 + 67 + 187 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 187738 + ... + 309849.

Almost surely, 2^30380671872 is an apocalyptic number.

30380671872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30380671872 is an abundant number, since it is smaller than the sum of its proper divisors (58692556008).

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

30380671872 is a wasteful number, since it uses less digits than its factorization.

30380671872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497660 (or 497645 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 45.

The spelling of 30380671872 in words is "thirty billion, three hundred eighty million, six hundred seventy-one thousand, eight hundred seventy-two".