448591802640 has 160 divisors (see below), whose sum is σ = 1410077534976. Its totient is φ = 117963571200.

The previous prime is 448591802537. The next prime is 448591802689. The reversal of 448591802640 is 46208195844.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4919704 + ... + 5010056.

Almost surely, 2^448591802640 is an apocalyptic number.

448591802640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 448591802640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (705038767488).

448591802640 is an abundant number, since it is smaller than the sum of its proper divisors (961485732336).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

448591802640 is a wasteful number, since it uses less digits than its factorization.

448591802640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90657 (or 90651 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 51.

The spelling of 448591802640 in words is "four hundred forty-eight billion, five hundred ninety-one million, eight hundred two thousand, six hundred forty".