47447488428 has 12 divisors (see below), whose sum is σ = 110710806360. Its totient is φ = 15815829472.

The previous prime is 47447488379. The next prime is 47447488441. The reversal of 47447488428 is 82488474474.

47447488428 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×47447488428² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976978673 + ... + 1976978696.

It is an arithmetic number, because the mean of its divisors is an integer number (9225900530).

Almost surely, 2^47447488428 is an apocalyptic number.

It is an amenable number.

47447488428 is an abundant number, since it is smaller than the sum of its proper divisors (63263317932).

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

47447488428 is a wasteful number, since it uses less digits than its factorization.

47447488428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3953957376 (or 3953957374 counting only the distinct ones).

The product of its digits is 51380224, while the sum is 60.

The spelling of 47447488428 in words is "forty-seven billion, four hundred forty-seven million, four hundred eighty-eight thousand, four hundred twenty-eight".