30909393913 has 16 divisors (see below), whose sum is σ = 32655826944. Its totient is φ = 29212552080.

The previous prime is 30909393869. The next prime is 30909393961. The reversal of 30909393913 is 31939390903.

It is a cyclic number.

It is not a de Polignac number, because 30909393913 - 2²⁹ = 30372523001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30909393313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 657706 + ... + 703132.

It is an arithmetic number, because the mean of its divisors is an integer number (2040989184).

Almost surely, 2^30909393913 is an apocalyptic number.

It is an amenable number.

30909393913 is a deficient number, since it is larger than the sum of its proper divisors (1746433031).

30909393913 is a wasteful number, since it uses less digits than its factorization.

30909393913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45972.

The product of its (nonzero) digits is 531441, while the sum is 49.

The spelling of 30909393913 in words is "thirty billion, nine hundred nine million, three hundred ninety-three thousand, nine hundred thirteen".