47644572789 has 32 divisors (see below), whose sum is σ = 77028940800. Its totient is φ = 28865144880.

The previous prime is 47644572769. The next prime is 47644572821. The reversal of 47644572789 is 98727544674.

47644572789 is a `hidden beast` number, since 47 + 6 + 445 + 72 + 7 + 89 = 666.

It is not a de Polignac number, because 47644572789 - 2⁵ = 47644572757 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47644572739) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 845592 + ... + 900174.

It is an arithmetic number, because the mean of its divisors is an integer number (2407154400).

Almost surely, 2^47644572789 is an apocalyptic number.

It is an amenable number.

47644572789 is a deficient number, since it is larger than the sum of its proper divisors (29384368011).

47644572789 is a wasteful number, since it uses less digits than its factorization.

47644572789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57542 (or 57536 counting only the distinct ones).

The product of its digits is 94832640, while the sum is 63.

The spelling of 47644572789 in words is "forty-seven billion, six hundred forty-four million, five hundred seventy-two thousand, seven hundred eighty-nine".