30478138115 has 4 divisors (see below), whose sum is σ = 36573765744. Its totient is φ = 24382510488.

The previous prime is 30478138099. The next prime is 30478138151. The reversal of 30478138115 is 51183187403.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 30478138115 - 2⁴ = 30478138099 is a prime.

It is a Duffinian number.

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 in 3 ways as a sum of consecutive naturals, for example, 3047813807 + ... + 3047813816.

It is an arithmetic number, because the mean of its divisors is an integer number (9143441436).

Almost surely, 2^30478138115 is an apocalyptic number.

30478138115 is a deficient number, since it is larger than the sum of its proper divisors (6095627629).

30478138115 is an equidigital number, since it uses as much as digits as its factorization.

30478138115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6095627628.

The product of its (nonzero) digits is 80640, while the sum is 41.

The spelling of 30478138115 in words is "thirty billion, four hundred seventy-eight million, one hundred thirty-eight thousand, one hundred fifteen".