30971048064 has 64 divisors (see below), whose sum is σ = 89745662880. Its totient is φ = 9385164800.

The previous prime is 30971048063. The next prime is 30971048089. The reversal of 30971048064 is 46084017903.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (30971048063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3661857 + ... + 3670304.

Almost surely, 2^30971048064 is an apocalyptic number.

It is an amenable number.

30971048064 is an abundant number, since it is smaller than the sum of its proper divisors (58774614816).

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

30971048064 is a wasteful number, since it uses less digits than its factorization.

30971048064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7332189 (or 7332177 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 42.

The spelling of 30971048064 in words is "thirty billion, nine hundred seventy-one million, forty-eight thousand, sixty-four".