47281472784 has 720 divisors, whose sum is σ = 175914490752. Its totient is φ = 11725959168.

The previous prime is 47281472759. The next prime is 47281472809. The reversal of 47281472784 is 48727418274.

47281472784 is a `hidden beast` number, since 472 + 8 + 147 + 27 + 8 + 4 = 666.

It is an interprime number because it is at equal distance from previous prime (47281472759) and next prime (47281472809).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 47281472784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 154011159 + ... + 154011465.

Almost surely, 2^47281472784 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 47281472784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87957245376).

47281472784 is an abundant number, since it is smaller than the sum of its proper divisors (128633017968).

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

47281472784 is a wasteful number, since it uses less digits than its factorization.

47281472784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444 (or 428 counting only the distinct ones).

The product of its digits is 5619712, while the sum is 54.

The spelling of 47281472784 in words is "forty-seven billion, two hundred eighty-one million, four hundred seventy-two thousand, seven hundred eighty-four".