47044653128 has 64 divisors (see below), whose sum is σ = 97302945600. Its totient is φ = 21145374720.

The previous prime is 47044653121. The next prime is 47044653133. The reversal of 47044653128 is 82135644074.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (47044653121) 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, 18240143 + ... + 18242721.

It is an arithmetic number, because the mean of its divisors is an integer number (1520358525).

Almost surely, 2^47044653128 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 47044653128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48651472800).

47044653128 is an abundant number, since it is smaller than the sum of its proper divisors (50258292472).

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

47044653128 is a wasteful number, since it uses less digits than its factorization.

47044653128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4830 (or 4826 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 47044653128 in words is "forty-seven billion, forty-four million, six hundred fifty-three thousand, one hundred twenty-eight".