450447101516721 has 16 divisors (see below), whose sum is σ = 636379876944000. Its totient is φ = 282431450059008.

The previous prime is 450447101516719. The next prime is 450447101516749. The reversal of 450447101516721 is 127615101744054.

It is not a de Polignac number, because 450447101516721 - 2¹ = 450447101516719 is a prime.

It is not an unprimeable number, because it can be changed into a prime (450447101516821) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3156574866 + ... + 3156717563.

It is an arithmetic number, because the mean of its divisors is an integer number (39773742309000).

Almost surely, 2^{450447101516721} is an apocalyptic number.

It is an amenable number.

450447101516721 is a deficient number, since it is larger than the sum of its proper divisors (185932775427279).

450447101516721 is a wasteful number, since it uses less digits than its factorization.

450447101516721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6313293848.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 450447101516721 in words is "four hundred fifty trillion, four hundred forty-seven billion, one hundred one million, five hundred sixteen thousand, seven hundred twenty-one".