30645885984 has 48 divisors (see below), whose sum is σ = 91937659968. Its totient is φ = 8755967232.

The previous prime is 30645885983. The next prime is 30645885997. The reversal of 30645885984 is 48958854603.

It is a tau number, because it is divible by the number of its divisors (48).

It is not an unprimeable number, because it can be changed into a prime (30645885983) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 22801327 + ... + 22802670.

It is an arithmetic number, because the mean of its divisors is an integer number (1915367916).

Almost surely, 2^30645885984 is an apocalyptic number.

It is an amenable number.

30645885984 is an abundant number, since it is smaller than the sum of its proper divisors (61291773984).

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

30645885984 is a wasteful number, since it uses less digits than its factorization.

30645885984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45604017 (or 45604009 counting only the distinct ones).

The product of its (nonzero) digits is 33177600, while the sum is 60.

The spelling of 30645885984 in words is "thirty billion, six hundred forty-five million, eight hundred eighty-five thousand, nine hundred eighty-four".