30675653818 has 4 divisors (see below), whose sum is σ = 46013480730. Its totient is φ = 15337826908.

The previous prime is 30675653809. The next prime is 30675653867. The reversal of 30675653818 is 81835657603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81835657603 = 7 ⋅11690808229.

It can be written as a sum of positive squares in only one way, i.e., 17178558489 + 13497095329 = 131067^2 + 116177^2 .

It is an unprimeable number.

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, 7668913453 + ... + 7668913456.

Almost surely, 2^30675653818 is an apocalyptic number.

30675653818 is a deficient number, since it is larger than the sum of its proper divisors (15337826912).

30675653818 is a wasteful number, since it uses less digits than its factorization.

30675653818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15337826911.

The product of its (nonzero) digits is 3628800, while the sum is 52.

The spelling of 30675653818 in words is "thirty billion, six hundred seventy-five million, six hundred fifty-three thousand, eight hundred eighteen".