5185144449 has 56 divisors (see below), whose sum is σ = 8589825792. Its totient is φ = 3111799680.

The previous prime is 5185144439. The next prime is 5185144463. The reversal of 5185144449 is 9444415815.

5185144449 is a `hidden beast` number, since 51 + 8 + 514 + 44 + 49 = 666.

It is not a de Polignac number, because 5185144449 - 2¹⁷ = 5185013377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5185144439) 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 55 ways as a sum of consecutive naturals, for example, 275944 + ... + 294134.

Almost surely, 2^5185144449 is an apocalyptic number.

It is an amenable number.

5185144449 is a deficient number, since it is larger than the sum of its proper divisors (3404681343).

5185144449 is a wasteful number, since it uses less digits than its factorization.

5185144449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18249 (or 18234 counting only the distinct ones).

The product of its digits is 460800, while the sum is 45.

The square root of 5185144449 is about 72007.9471239113. The cubic root of 5185144449 is about 1730.8268346489.

The spelling of 5185144449 in words is "five billion, one hundred eighty-five million, one hundred forty-four thousand, four hundred forty-nine".