30444718903 has 4 divisors (see below), whose sum is σ = 30447532888. Its totient is φ = 30441904920.

The previous prime is 30444718873. The next prime is 30444718921. The reversal of 30444718903 is 30981744403.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30444718903 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30444718903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30444718943) 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, 1390701 + ... + 1412422.

It is an arithmetic number, because the mean of its divisors is an integer number (7611883222).

Almost surely, 2^30444718903 is an apocalyptic number.

30444718903 is a deficient number, since it is larger than the sum of its proper divisors (2813985).

30444718903 is a wasteful number, since it uses less digits than its factorization.

30444718903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813984.

The product of its (nonzero) digits is 290304, while the sum is 43.

The spelling of 30444718903 in words is "thirty billion, four hundred forty-four million, seven hundred eighteen thousand, nine hundred three".