30534445728 has 72 divisors (see below), whose sum is σ = 87287106816. Its totient is φ = 10124841600.

The previous prime is 30534445699. The next prime is 30534445759. The reversal of 30534445728 is 82754443503.

30534445728 is a `hidden beast` number, since 3 + 0 + 5 + 34 + 44 + 572 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 222538 + ... + 332553.

It is an arithmetic number, because the mean of its divisors is an integer number (1212320928).

Almost surely, 2^30534445728 is an apocalyptic number.

It is an amenable number.

30534445728 is an abundant number, since it is smaller than the sum of its proper divisors (56752661088).

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

30534445728 is a wasteful number, since it uses less digits than its factorization.

30534445728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555298 (or 555287 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 45.

The spelling of 30534445728 in words is "thirty billion, five hundred thirty-four million, four hundred forty-five thousand, seven hundred twenty-eight".