30494985191 has 6 divisors (see below), whose sum is σ = 33519281376. Its totient is φ = 27722713700.

The previous prime is 30494985121. The next prime is 30494985217. The reversal of 30494985191 is 19158949403.

It is not a de Polignac number, because 30494985191 - 2¹⁸ = 30494723047 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 (30494985121) 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 5 ways as a sum of consecutive naturals, for example, 126012215 + ... + 126012456.

It is an arithmetic number, because the mean of its divisors is an integer number (5586546896).

Almost surely, 2^30494985191 is an apocalyptic number.

30494985191 is a deficient number, since it is larger than the sum of its proper divisors (3024296185).

30494985191 is a wasteful number, since it uses less digits than its factorization.

30494985191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252024693 (or 252024682 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 53.

The spelling of 30494985191 in words is "thirty billion, four hundred ninety-four million, nine hundred eighty-five thousand, one hundred ninety-one".