489177368479 has 4 divisors (see below), whose sum is σ = 489180820176. Its totient is φ = 489173916784.

The previous prime is 489177368419. The next prime is 489177368513. The reversal of 489177368479 is 974863771984.

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 489177368479 - 2⁹ = 489177367967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489177368419) 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, 1503739 + ... + 1799884.

It is an arithmetic number, because the mean of its divisors is an integer number (122295205044).

Almost surely, 2^489177368479 is an apocalyptic number.

489177368479 is a deficient number, since it is larger than the sum of its proper divisors (3451697).

489177368479 is a wasteful number, since it uses less digits than its factorization.

489177368479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3451696.

The product of its digits is 512096256, while the sum is 73.

The spelling of 489177368479 in words is "four hundred eighty-nine billion, one hundred seventy-seven million, three hundred sixty-eight thousand, four hundred seventy-nine".