8458378445 has 16 divisors (see below), whose sum is σ = 11075807808. Its totient is φ = 6149869440.

The previous prime is 8458378417. The next prime is 8458378457. The reversal of 8458378445 is 5448738548.

It is a de Polignac number, because none of the positive numbers 2^k-8458378445 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 204182 + ... + 242088.

It is an arithmetic number, because the mean of its divisors is an integer number (692237988).

Almost surely, 2^8458378445 is an apocalyptic number.

It is an amenable number.

8458378445 is a deficient number, since it is larger than the sum of its proper divisors (2617429363).

8458378445 is a wasteful number, since it uses less digits than its factorization.

8458378445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41980.

The product of its digits is 17203200, while the sum is 56.

The square root of 8458378445 is about 91969.4429960299. The cubic root of 8458378445 is about 2037.4910239358.

The spelling of 8458378445 in words is "eight billion, four hundred fifty-eight million, three hundred seventy-eight thousand, four hundred forty-five".