4447855779453 has 32 divisors (see below), whose sum is σ = 6601637376000. Its totient is φ = 2959739406000.

The previous prime is 4447855779391. The next prime is 4447855779461. The reversal of 4447855779453 is 3549775587444.

It is a happy number.

4447855779453 is a `hidden beast` number, since 4 + 4 + 4 + 7 + 8 + 5 + 577 + 9 + 45 + 3 = 666.

It is not a de Polignac number, because 4447855779453 - 2²⁴ = 4447839002237 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4447855779463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 99457768 + ... + 99502478.

It is an arithmetic number, because the mean of its divisors is an integer number (206301168000).

Almost surely, 2^{4447855779453} is an apocalyptic number.

It is an amenable number.

4447855779453 is a deficient number, since it is larger than the sum of its proper divisors (2153781596547).

4447855779453 is a wasteful number, since it uses less digits than its factorization.

4447855779453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51470 (or 51464 counting only the distinct ones).

The product of its digits is 2370816000, while the sum is 72.

The spelling of 4447855779453 in words is "four trillion, four hundred forty-seven billion, eight hundred fifty-five million, seven hundred seventy-nine thousand, four hundred fifty-three".