30645057186 has 32 divisors (see below), whose sum is σ = 68107737600. Its totient is φ = 10213877520.

The previous prime is 30645057173. The next prime is 30645057187. The reversal of 30645057186 is 68175054603.

30645057186 is a `hidden beast` number, since 3 + 0 + 64 + 505 + 7 + 1 + 86 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30645057187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555855 + ... + 608493.

It is an arithmetic number, because the mean of its divisors is an integer number (2128366800).

Almost surely, 2^30645057186 is an apocalyptic number.

30645057186 is an abundant number, since it is smaller than the sum of its proper divisors (37462680414).

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

30645057186 is a wasteful number, since it uses less digits than its factorization.

30645057186 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63431 (or 63425 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 30645057186 in words is "thirty billion, six hundred forty-five million, fifty-seven thousand, one hundred eighty-six".