30005071472 has 80 divisors (see below), whose sum is σ = 63677352960. Its totient is φ = 13647718656.

The previous prime is 30005071471. The next prime is 30005071493. The reversal of 30005071472 is 27417050003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30005071471) 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, 737453 + ... + 777075.

It is an arithmetic number, because the mean of its divisors is an integer number (795966912).

Almost surely, 2^30005071472 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 30005071472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31838676480).

30005071472 is an abundant number, since it is smaller than the sum of its proper divisors (33672281488).

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

30005071472 is a wasteful number, since it uses less digits than its factorization.

30005071472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39750 (or 39744 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 29.

The spelling of 30005071472 in words is "thirty billion, five million, seventy-one thousand, four hundred seventy-two".