449432009889 has 16 divisors (see below), whose sum is σ = 602508796800. Its totient is φ = 297989556480.

The previous prime is 449432009881. The next prime is 449432009951. The reversal of 449432009889 is 988900234944.

It is not a de Polignac number, because 449432009889 - 2³ = 449432009881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (449432009881) 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 15 ways as a sum of consecutive naturals, for example, 1263369 + ... + 1579545.

It is an arithmetic number, because the mean of its divisors is an integer number (37656799800).

Almost surely, 2^449432009889 is an apocalyptic number.

It is an amenable number.

449432009889 is a deficient number, since it is larger than the sum of its proper divisors (153076786911).

449432009889 is a wasteful number, since it uses less digits than its factorization.

449432009889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318760.

The product of its (nonzero) digits is 17915904, while the sum is 60.

The spelling of 449432009889 in words is "four hundred forty-nine billion, four hundred thirty-two million, nine thousand, eight hundred eighty-nine".