448679632656 has 80 divisors (see below), whose sum is σ = 1228096111104. Its totient is φ = 140667574272.

The previous prime is 448679632607. The next prime is 448679632693. The reversal of 448679632656 is 656236976844.

It is a super-2 number, since 2×448679632656² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1034145 + ... + 1402431.

Almost surely, 2^448679632656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 448679632656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (614048055552).

448679632656 is an abundant number, since it is smaller than the sum of its proper divisors (779416478448).

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

448679632656 is a wasteful number, since it uses less digits than its factorization.

448679632656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369808 (or 369802 counting only the distinct ones).

The product of its digits is 313528320, while the sum is 66.

The spelling of 448679632656 in words is "four hundred forty-eight billion, six hundred seventy-nine million, six hundred thirty-two thousand, six hundred fifty-six".