30974017491 has 8 divisors (see below), whose sum is σ = 45887433360. Its totient is φ = 20649344976.

The previous prime is 30974017489. The next prime is 30974017507. The reversal of 30974017491 is 19471047903.

30974017491 is a `hidden beast` number, since 3 + 0 + 97 + 401 + 74 + 91 = 666.

It is not a de Polignac number, because 30974017491 - 2¹ = 30974017489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30974010491) 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 7 ways as a sum of consecutive naturals, for example, 573592890 + ... + 573592943.

It is an arithmetic number, because the mean of its divisors is an integer number (5735929170).

Almost surely, 2^30974017491 is an apocalyptic number.

30974017491 is a deficient number, since it is larger than the sum of its proper divisors (14913415869).

30974017491 is a wasteful number, since it uses less digits than its factorization.

30974017491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1147185842 (or 1147185836 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The spelling of 30974017491 in words is "thirty billion, nine hundred seventy-four million, seventeen thousand, four hundred ninety-one".