30336213818 has 4 divisors (see below), whose sum is σ = 45504320730. Its totient is φ = 15168106908.

The previous prime is 30336213811. The next prime is 30336213847. The reversal of 30336213818 is 81831263303.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26622164569 + 3714049249 = 163163^2 + 60943^2 .

It is a super-2 number, since 2×30336213818² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30336213811) 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 as a sum of consecutive naturals, namely, 7584053453 + ... + 7584053456.

Almost surely, 2^30336213818 is an apocalyptic number.

30336213818 is a deficient number, since it is larger than the sum of its proper divisors (15168106912).

30336213818 is a wasteful number, since it uses less digits than its factorization.

30336213818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15168106911.

The product of its (nonzero) digits is 62208, while the sum is 38.

The spelling of 30336213818 in words is "thirty billion, three hundred thirty-six million, two hundred thirteen thousand, eight hundred eighteen".