47591089728 has 224 divisors, whose sum is σ = 157103283456. Its totient is φ = 12379226112.

The previous prime is 47591089687. The next prime is 47591089751. The reversal of 47591089728 is 82798019574.

It is a tau number, because it is divible by the number of its divisors (224).

It is a super-2 number, since 2×47591089728² (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 31 ways as a sum of consecutive naturals, for example, 1256800 + ... + 1294112.

It is an arithmetic number, because the mean of its divisors is an integer number (701353944).

Almost surely, 2^47591089728 is an apocalyptic number.

47591089728 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 47591089728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78551641728).

47591089728 is an abundant number, since it is smaller than the sum of its proper divisors (109512193728).

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

47591089728 is a wasteful number, since it uses less digits than its factorization.

47591089728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37421 (or 37411 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 60.

The spelling of 47591089728 in words is "forty-seven billion, five hundred ninety-one million, eighty-nine thousand, seven hundred twenty-eight".