8438945455 has 8 divisors (see below), whose sum is σ = 10127818512. Its totient is φ = 6750433728.

The previous prime is 8438945453. The next prime is 8438945483. The reversal of 8438945455 is 5545498348.

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 8438945455 - 2¹ = 8438945453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8438945396 and 8438945405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8438945453) 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 7 ways as a sum of consecutive naturals, for example, 35974 + ... + 134803.

It is an arithmetic number, because the mean of its divisors is an integer number (1265977314).

Almost surely, 2^8438945455 is an apocalyptic number.

8438945455 is a deficient number, since it is larger than the sum of its proper divisors (1688873057).

8438945455 is a wasteful number, since it uses less digits than its factorization.

8438945455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 180665.

The product of its digits is 13824000, while the sum is 55.

The square root of 8438945455 is about 91863.7330778583. The cubic root of 8438945455 is about 2035.9294596902.

The spelling of 8438945455 in words is "eight billion, four hundred thirty-eight million, nine hundred forty-five thousand, four hundred fifty-five".