30939493903 has 8 divisors (see below), whose sum is σ = 31217316768. Its totient is φ = 30661741824.

The previous prime is 30939493891. The next prime is 30939493913.

It is a happy number.

30939493903 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30939493903 - 2¹³ = 30939485711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30939493913) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1290675 + ... + 1314427.

It is an arithmetic number, because the mean of its divisors is an integer number (3902164596).

Almost surely, 2^30939493903 is an apocalyptic number.

30939493903 is a deficient number, since it is larger than the sum of its proper divisors (277822865).

30939493903 is a wasteful number, since it uses less digits than its factorization.

30939493903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35393.

The product of its (nonzero) digits is 2125764, while the sum is 52.

The spelling of 30939493903 in words is "thirty billion, nine hundred thirty-nine million, four hundred ninety-three thousand, nine hundred three".