448750199521 has 4 divisors (see below), whose sum is σ = 483269445652. Its totient is φ = 414230953392.

The previous prime is 448750199501. The next prime is 448750199539. The reversal of 448750199521 is 125991057844.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 204579813025 + 244170386496 = 452305^2 + 494136^2 .

It is a cyclic number.

It is not a de Polignac number, because 448750199521 - 2⁵ = 448750199489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (448750199501) by changing a digit.

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, 17259623046 + ... + 17259623071.

It is an arithmetic number, because the mean of its divisors is an integer number (120817361413).

Almost surely, 2^448750199521 is an apocalyptic number.

It is an amenable number.

448750199521 is a deficient number, since it is larger than the sum of its proper divisors (34519246131).

448750199521 is a wasteful number, since it uses less digits than its factorization.

448750199521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34519246130.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The spelling of 448750199521 in words is "four hundred forty-eight billion, seven hundred fifty million, one hundred ninety-nine thousand, five hundred twenty-one".