30678404185 has 32 divisors (see below), whose sum is σ = 43440872832. Its totient is φ = 20504455680.

The previous prime is 30678404149. The next prime is 30678404189. The reversal of 30678404185 is 58140487603.

It is a happy number.

It is not a de Polignac number, because 30678404185 - 2¹¹ = 30678402137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30678404189) 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, 67797 + ... + 256813.

It is an arithmetic number, because the mean of its divisors is an integer number (1357527276).

Almost surely, 2^30678404185 is an apocalyptic number.

It is an amenable number.

30678404185 is a deficient number, since it is larger than the sum of its proper divisors (12762468647).

30678404185 is a wasteful number, since it uses less digits than its factorization.

30678404185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189273.

The product of its (nonzero) digits is 645120, while the sum is 46.

The spelling of 30678404185 in words is "thirty billion, six hundred seventy-eight million, four hundred four thousand, one hundred eighty-five".