30943394064 has 160 divisors (see below), whose sum is σ = 97118784000. Its totient is φ = 9354983040.

The previous prime is 30943394047. The next prime is 30943394071. The reversal of 30943394064 is 46049334903.

30943394064 is a `hidden beast` number, since 309 + 4 + 339 + 4 + 0 + 6 + 4 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2097787 + ... + 2112485.

It is an arithmetic number, because the mean of its divisors is an integer number (606992400).

Almost surely, 2^30943394064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30943394064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48559392000).

30943394064 is an abundant number, since it is smaller than the sum of its proper divisors (66175389936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30943394064 is a wasteful number, since it uses less digits than its factorization.

30943394064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15170 (or 15158 counting only the distinct ones).

The product of its (nonzero) digits is 839808, while the sum is 45.

The spelling of 30943394064 in words is "thirty billion, nine hundred forty-three million, three hundred ninety-four thousand, sixty-four".