8548449399 has 128 divisors (see below), whose sum is σ = 15667200000. Its totient is φ = 4595022432.

The previous prime is 8548449389. The next prime is 8548449419. The reversal of 8548449399 is 9939448458.

8548449399 is a `hidden beast` number, since 8 + 54 + 8 + 4 + 493 + 99 = 666.

It is not a de Polignac number, because 8548449399 - 2⁵ = 8548449367 is a prime.

It is a super-2 number, since 2×8548449399² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8548449319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 14270902 + ... + 14271500.

It is an arithmetic number, because the mean of its divisors is an integer number (122400000).

Almost surely, 2^8548449399 is an apocalyptic number.

8548449399 is a deficient number, since it is larger than the sum of its proper divisors (7118750601).

8548449399 is a wasteful number, since it uses less digits than its factorization.

8548449399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719 (or 699 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 63.

The square root of 8548449399 is about 92457.8249744174. The cubic root of 8548449399 is about 2044.6977312422.

The spelling of 8548449399 in words is "eight billion, five hundred forty-eight million, four hundred forty-nine thousand, three hundred ninety-nine".