1445886668880 has 60 divisors (see below), whose sum is σ = 4855769398740. Its totient is φ = 385569778176.

The previous prime is 1445886668851. The next prime is 1445886668887. The reversal of 1445886668880 is 888666885441.

It can be written as a sum of positive squares in 2 ways, for example, as 644911788096 + 800974880784 = 803064^2 + 894972^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 1445886668799 and 1445886668808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1445886668887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1004087245 + ... + 1004088684.

It is an arithmetic number, because the mean of its divisors is an integer number (80929489979).

Almost surely, 2^{1445886668880} is an apocalyptic number.

1445886668880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1445886668880 is an abundant number, since it is smaller than the sum of its proper divisors (3409882729860).

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

1445886668880 is a wasteful number, since it uses less digits than its factorization.

1445886668880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008175948 (or 2008175939 counting only the distinct ones).

The product of its (nonzero) digits is 566231040, while the sum is 72.

The spelling of 1445886668880 in words is "one trillion, four hundred forty-five billion, eight hundred eighty-six million, six hundred sixty-eight thousand, eight hundred eighty".