30806685418 has 8 divisors (see below), whose sum is σ = 46385732448. Its totient is φ = 15344774604.

The previous prime is 30806685409. The next prime is 30806685419. The reversal of 30806685418 is 81458660803.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×30806685418² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30806685419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29283396 + ... + 29284447.

It is an arithmetic number, because the mean of its divisors is an integer number (5798216556).

Almost surely, 2^30806685418 is an apocalyptic number.

30806685418 is a deficient number, since it is larger than the sum of its proper divisors (15579047030).

30806685418 is a wasteful number, since it uses less digits than its factorization.

30806685418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58568108.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 30806685418 in words is "thirty billion, eight hundred six million, six hundred eighty-five thousand, four hundred eighteen".