449812731885 has 128 divisors (see below), whose sum is σ = 805722494976. Its totient is φ = 212458659840.

The previous prime is 449812731859. The next prime is 449812731889. The reversal of 449812731885 is 588137218944.

It is not a de Polignac number, because 449812731885 - 2⁸ = 449812731629 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (449812731889) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 766290562 + ... + 766291148.

It is an arithmetic number, because the mean of its divisors is an integer number (6294706992).

Almost surely, 2^449812731885 is an apocalyptic number.

It is an amenable number.

449812731885 is a deficient number, since it is larger than the sum of its proper divisors (355909763091).

449812731885 is a wasteful number, since it uses less digits than its factorization.

449812731885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1355.

The product of its digits is 15482880, while the sum is 60.

The spelling of 449812731885 in words is "four hundred forty-nine billion, eight hundred twelve million, seven hundred thirty-one thousand, eight hundred eighty-five".