30805974393 has 16 divisors (see below), whose sum is σ = 42864906240. Its totient is φ = 19642363664.

The previous prime is 30805974383. The next prime is 30805974401. The reversal of 30805974393 is 39347950803.

It is a cyclic number.

It is not a de Polignac number, because 30805974393 - 2¹² = 30805970297 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (30805974323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 941848 + ... + 974006.

It is an arithmetic number, because the mean of its divisors is an integer number (2679056640).

Almost surely, 2^30805974393 is an apocalyptic number.

It is an amenable number.

30805974393 is a deficient number, since it is larger than the sum of its proper divisors (12058931847).

30805974393 is a wasteful number, since it uses less digits than its factorization.

30805974393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46068.

The product of its (nonzero) digits is 2449440, while the sum is 51.

The spelling of 30805974393 in words is "thirty billion, eight hundred five million, nine hundred seventy-four thousand, three hundred ninety-three".