1445705408217 has 96 divisors (see below), whose sum is σ = 2504306633472. Its totient is φ = 723612966912.

The previous prime is 1445705408207. The next prime is 1445705408227. The reversal of 1445705408217 is 7128045075441.

It is an interprime number because it is at equal distance from previous prime (1445705408207) and next prime (1445705408227).

It is not a de Polignac number, because 1445705408217 - 2¹⁹ = 1445704883929 is a prime.

It is a super-2 number, since 2×1445705408217² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1445705408207) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6884113 + ... + 7091009.

It is an arithmetic number, because the mean of its divisors is an integer number (26086527432).

Almost surely, 2^{1445705408217} is an apocalyptic number.

1445705408217 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

1445705408217 is a deficient number, since it is larger than the sum of its proper divisors (1058601225255).

1445705408217 is a wasteful number, since it uses less digits than its factorization.

1445705408217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207007 (or 206984 counting only the distinct ones).

The product of its (nonzero) digits is 1254400, while the sum is 48.

The spelling of 1445705408217 in words is "one trillion, four hundred forty-five billion, seven hundred five million, four hundred eight thousand, two hundred seventeen".