489672309442 has 16 divisors (see below), whose sum is σ = 734967283680. Its totient is φ = 244683268128.

The previous prime is 489672309433. The next prime is 489672309473. The reversal of 489672309442 is 244903276984.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25248073 + ... + 25267459.

It is an arithmetic number, because the mean of its divisors is an integer number (45935455230).

Almost surely, 2^489672309442 is an apocalyptic number.

489672309442 is a deficient number, since it is larger than the sum of its proper divisors (245294974238).

489672309442 is a wasteful number, since it uses less digits than its factorization.

489672309442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26625.

The product of its (nonzero) digits is 20901888, while the sum is 58.

The spelling of 489672309442 in words is "four hundred eighty-nine billion, six hundred seventy-two million, three hundred nine thousand, four hundred forty-two".