30185384768 has 56 divisors (see below), whose sum is σ = 74679438144. Its totient is φ = 11760537600.

The previous prime is 30185384767. The next prime is 30185384809. The reversal of 30185384768 is 86748358103.

It is a tau number, because it is divible by the number of its divisors (56).

It is a super-2 number, since 2×30185384768² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30185384767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3057713 + ... + 3067568.

Almost surely, 2^30185384768 is an apocalyptic number.

It is an amenable number.

30185384768 is an abundant number, since it is smaller than the sum of its proper divisors (44494053376).

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

30185384768 is a wasteful number, since it uses less digits than its factorization.

30185384768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6125311 (or 6125301 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 53.

The spelling of 30185384768 in words is "thirty billion, one hundred eighty-five million, three hundred eighty-four thousand, seven hundred sixty-eight".