30994718505 has 64 divisors (see below), whose sum is σ = 50867481600. Its totient is φ = 16111872000.

The previous prime is 30994718497. The next prime is 30994718509. The reversal of 30994718505 is 50581749903.

It is not a de Polignac number, because 30994718505 - 2³ = 30994718497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30994718509) 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 63 ways as a sum of consecutive naturals, for example, 44214655 + ... + 44215355.

It is an arithmetic number, because the mean of its divisors is an integer number (794804400).

Almost surely, 2^30994718505 is an apocalyptic number.

It is an amenable number.

30994718505 is a deficient number, since it is larger than the sum of its proper divisors (19872763095).

30994718505 is a wasteful number, since it uses less digits than its factorization.

30994718505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1202.

The product of its (nonzero) digits is 1360800, while the sum is 51.

The spelling of 30994718505 in words is "thirty billion, nine hundred ninety-four million, seven hundred eighteen thousand, five hundred five".