30864568218 has 64 divisors (see below), whose sum is σ = 67945512960. Its totient is φ = 9269294400.

The previous prime is 30864568213. The next prime is 30864568261. The reversal of 30864568218 is 81286546803.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (30864568211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3487443 + ... + 3496281.

It is an arithmetic number, because the mean of its divisors is an integer number (1061648640).

Almost surely, 2^30864568218 is an apocalyptic number.

30864568218 is an abundant number, since it is smaller than the sum of its proper divisors (37080944742).

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

30864568218 is a wasteful number, since it uses less digits than its factorization.

30864568218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9323.

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 30864568218 in words is "thirty billion, eight hundred sixty-four million, five hundred sixty-eight thousand, two hundred eighteen".