47180235644 has 12 divisors (see below), whose sum is σ = 82576862424. Its totient is φ = 23586846384.

The previous prime is 47180235577. The next prime is 47180235671. The reversal of 47180235644 is 44653208174.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 47180235595 and 47180235604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 785267 + ... + 843210.

It is an arithmetic number, because the mean of its divisors is an integer number (6881405202).

Almost surely, 2^47180235644 is an apocalyptic number.

It is an amenable number.

47180235644 is a deficient number, since it is larger than the sum of its proper divisors (35396626780).

47180235644 is a wasteful number, since it uses less digits than its factorization.

47180235644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635724 (or 1635722 counting only the distinct ones).

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

The spelling of 47180235644 in words is "forty-seven billion, one hundred eighty million, two hundred thirty-five thousand, six hundred forty-four".