449661509829 has 12 divisors (see below), whose sum is σ = 742298365536. Its totient is φ = 256949434152.

The previous prime is 449661509813. The next prime is 449661509863. The reversal of 449661509829 is 928905166944.

449661509829 is a `hidden beast` number, since 4 + 4 + 9 + 6 + 615 + 0 + 9 + 8 + 2 + 9 = 666.

It is not a de Polignac number, because 449661509829 - 2⁴ = 449661509813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63), and also a Moran number because the ratio is a prime number: 7137484283 = 449661509829 / (4 + 4 + 9 + 6 + 6 + 1 + 5 + 0 + 9 + 8 + 2 + 9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449661509809) 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 11 ways as a sum of consecutive naturals, for example, 3568742079 + ... + 3568742204.

It is an arithmetic number, because the mean of its divisors is an integer number (61858197128).

Almost surely, 2^449661509829 is an apocalyptic number.

It is an amenable number.

449661509829 is a deficient number, since it is larger than the sum of its proper divisors (292636855707).

449661509829 is a wasteful number, since it uses less digits than its factorization.

449661509829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7137484296 (or 7137484293 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 449661509829 in words is "four hundred forty-nine billion, six hundred sixty-one million, five hundred nine thousand, eight hundred twenty-nine".