448618856646 has 32 divisors (see below), whose sum is σ = 912216266208. Its totient is φ = 147044643840.

The previous prime is 448618856641. The next prime is 448618856659. The reversal of 448618856646 is 646658816844.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (448618856641) 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, 1069590 + ... + 1428726.

It is an arithmetic number, because the mean of its divisors is an integer number (28506758319).

Almost surely, 2^448618856646 is an apocalyptic number.

448618856646 is an abundant number, since it is smaller than the sum of its proper divisors (463597409562).

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

448618856646 is a wasteful number, since it uses less digits than its factorization.

448618856646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362616.

The product of its digits is 212336640, while the sum is 66.

The spelling of 448618856646 in words is "four hundred forty-eight billion, six hundred eighteen million, eight hundred fifty-six thousand, six hundred forty-six".