9445665449 has 4 divisors (see below), whose sum is σ = 10304362320. Its totient is φ = 8586968580.

The previous prime is 9445665419. The next prime is 9445665547.

9445665449 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9445665449 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9445665394 and 9445665403.

It is not an unprimeable number, because it can be changed into a prime (9445665419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429348419 + ... + 429348440.

It is an arithmetic number, because the mean of its divisors is an integer number (2576090580).

Almost surely, 2^9445665449 is an apocalyptic number.

It is an amenable number.

9445665449 is a deficient number, since it is larger than the sum of its proper divisors (858696871).

9445665449 is a wasteful number, since it uses less digits than its factorization.

9445665449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858696870.

The product of its digits is 18662400, while the sum is 56.

The square root of 9445665449 is about 97188.8133943408. The cubic root of 9445665449 is about 2113.8663228216.

The spelling of 9445665449 in words is "nine billion, four hundred forty-five million, six hundred sixty-five thousand, four hundred forty-nine".