449433988173 has 12 divisors (see below), whose sum is σ = 649311324480. Its totient is φ = 299563167816.

The previous prime is 449433988169. The next prime is 449433988181. The reversal of 449433988173 is 371889334944.

449433988173 is a `hidden beast` number, since 4 + 49 + 433 + 98 + 8 + 1 + 73 = 666.

It is not a de Polignac number, because 449433988173 - 2² = 449433988169 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 449433988173.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449433988103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4909711 + ... + 5000412.

It is an arithmetic number, because the mean of its divisors is an integer number (54109277040).

Almost surely, 2^449433988173 is an apocalyptic number.

It is an amenable number.

449433988173 is a deficient number, since it is larger than the sum of its proper divisors (199877336307).

449433988173 is a wasteful number, since it uses less digits than its factorization.

449433988173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9915168 (or 9915165 counting only the distinct ones).

The product of its digits is 62705664, while the sum is 63.

The spelling of 449433988173 in words is "four hundred forty-nine billion, four hundred thirty-three million, nine hundred eighty-eight thousand, one hundred seventy-three".