8919122449 has 4 divisors (see below), whose sum is σ = 8929293364. Its totient is φ = 8908951536.

The previous prime is 8919122423. The next prime is 8919122467. The reversal of 8919122449 is 9442219198.

8919122449 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7546049424 + 1373073025 = 86868^2 + 37055^2 .

It is a cyclic number.

It is not a de Polignac number, because 8919122449 - 2¹⁵ = 8919089681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8919122249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5084142 + ... + 5085895.

It is an arithmetic number, because the mean of its divisors is an integer number (2232323341).

Almost surely, 2^8919122449 is an apocalyptic number.

It is an amenable number.

8919122449 is a deficient number, since it is larger than the sum of its proper divisors (10170915).

8919122449 is a wasteful number, since it uses less digits than its factorization.

8919122449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10170914.

The product of its digits is 373248, while the sum is 49.

The square root of 8919122449 is about 94441.1057167376. The cubic root of 8919122449 is about 2073.8342471329.

The spelling of 8919122449 in words is "eight billion, nine hundred nineteen million, one hundred twenty-two thousand, four hundred forty-nine".