30005040178 has 4 divisors (see below), whose sum is σ = 45007560270. Its totient is φ = 15002520088.

The previous prime is 30005040157. The next prime is 30005040181. The reversal of 30005040178 is 87104050003.

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., 21615762529 + 8389277649 = 147023^2 + 91593^2 .

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, 7501260043 + ... + 7501260046.

Almost surely, 2^30005040178 is an apocalyptic number.

30005040178 is a deficient number, since it is larger than the sum of its proper divisors (15002520092).

30005040178 is a wasteful number, since it uses less digits than its factorization.

30005040178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15002520091.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 30005040178 in words is "thirty billion, five million, forty thousand, one hundred seventy-eight".