47193938444 has 12 divisors (see below), whose sum is σ = 83584445784. Its totient is φ = 23312668224.

The previous prime is 47193938401. The next prime is 47193938483. The reversal of 47193938444 is 44483939174.

It is a super-2 number, since 2×47193938444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 47193938444.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71074877 + ... + 71075540.

It is an arithmetic number, because the mean of its divisors is an integer number (6965370482).

Almost surely, 2^47193938444 is an apocalyptic number.

It is an amenable number.

47193938444 is a deficient number, since it is larger than the sum of its proper divisors (36390507340).

47193938444 is a wasteful number, since it uses less digits than its factorization.

47193938444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142150504 (or 142150502 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 56.

The spelling of 47193938444 in words is "forty-seven billion, one hundred ninety-three million, nine hundred thirty-eight thousand, four hundred forty-four".