448721113770 has 128 divisors (see below), whose sum is σ = 1202963374080. Its totient is φ = 119022681600.

The previous prime is 448721113721. The next prime is 448721113781. The reversal of 448721113770 is 77311127844.

448721113770 is a `hidden beast` number, since 448 + 7 + 2 + 1 + 1 + 137 + 70 = 666.

It is a super-2 number, since 2×448721113770² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 72406312 + ... + 72412508.

It is an arithmetic number, because the mean of its divisors is an integer number (9398151360).

Almost surely, 2^448721113770 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 448721113770, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (601481687040).

448721113770 is an abundant number, since it is smaller than the sum of its proper divisors (754242260310).

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

448721113770 is a wasteful number, since it uses less digits than its factorization.

448721113770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7597 (or 7591 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 45.

The spelling of 448721113770 in words is "four hundred forty-eight billion, seven hundred twenty-one million, one hundred thirteen thousand, seven hundred seventy".