448903299517 has 4 divisors (see below), whose sum is σ = 448904670876. Its totient is φ = 448901928160.

The previous prime is 448903299461. The next prime is 448903299521. The reversal of 448903299517 is 715992309844.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 117151491076 + 331751808441 = 342274^2 + 575979^2 .

It is a cyclic number.

It is not a de Polignac number, because 448903299517 - 2³⁵ = 414543561149 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448903299527) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124167 + ... + 955627.

It is an arithmetic number, because the mean of its divisors is an integer number (112226167719).

Almost surely, 2^448903299517 is an apocalyptic number.

It is an amenable number.

448903299517 is a deficient number, since it is larger than the sum of its proper divisors (1371359).

448903299517 is an equidigital number, since it uses as much as digits as its factorization.

448903299517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371358.

The product of its (nonzero) digits is 19595520, while the sum is 61.

The spelling of 448903299517 in words is "four hundred forty-eight billion, nine hundred three million, two hundred ninety-nine thousand, five hundred seventeen".