489551734739 has 4 divisors (see below), whose sum is σ = 518348895624. Its totient is φ = 460754573856.

The previous prime is 489551734717. The next prime is 489551734747. The reversal of 489551734739 is 937437155984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 489551734739 - 2¹⁶ = 489551669203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489551734939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14398580417 + ... + 14398580450.

It is an arithmetic number, because the mean of its divisors is an integer number (129587223906).

Almost surely, 2^489551734739 is an apocalyptic number.

489551734739 is a deficient number, since it is larger than the sum of its proper divisors (28797160885).

489551734739 is a wasteful number, since it uses less digits than its factorization.

489551734739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28797160884.

The product of its digits is 114307200, while the sum is 65.

The spelling of 489551734739 in words is "four hundred eighty-nine billion, five hundred fifty-one million, seven hundred thirty-four thousand, seven hundred thirty-nine".