30308136998 has 4 divisors (see below), whose sum is σ = 45462205500. Its totient is φ = 15154068498.

The previous prime is 30308136961. The next prime is 30308137021. The reversal of 30308136998 is 89963180303.

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

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7577034248 + ... + 7577034251.

It is an arithmetic number, because the mean of its divisors is an integer number (11365551375).

Almost surely, 2^30308136998 is an apocalyptic number.

30308136998 is a deficient number, since it is larger than the sum of its proper divisors (15154068502).

30308136998 is a wasteful number, since it uses less digits than its factorization.

30308136998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15154068501.

The product of its (nonzero) digits is 839808, while the sum is 50.

The spelling of 30308136998 in words is "thirty billion, three hundred eight million, one hundred thirty-six thousand, nine hundred ninety-eight".