1445719422481 has 8 divisors (see below), whose sum is σ = 1452166226280. Its totient is φ = 1439284482048.

The previous prime is 1445719422463. The next prime is 1445719422527. The reversal of 1445719422481 is 1842249175441.

It can be written as a sum of positive squares in 4 ways, for example, as 245634228225 + 1200085194256 = 495615^2 + 1095484^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1445719422481 - 2⁷ = 1445719422353 is a prime.

It is a super-2 number, since 2×1445719422481² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1445719422421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2721526 + ... + 3209071.

It is an arithmetic number, because the mean of its divisors is an integer number (181520778285).

Almost surely, 2^{1445719422481} is an apocalyptic number.

It is an amenable number.

1445719422481 is a deficient number, since it is larger than the sum of its proper divisors (6446803799).

1445719422481 is an equidigital number, since it uses as much as digits as its factorization.

1445719422481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931683.

The product of its digits is 2580480, while the sum is 52.

The spelling of 1445719422481 in words is "one trillion, four hundred forty-five billion, seven hundred nineteen million, four hundred twenty-two thousand, four hundred eighty-one".