489515528377 has 4 divisors (see below), whose sum is σ = 518310559476. Its totient is φ = 460720497280.

The previous prime is 489515528317. The next prime is 489515528443. The reversal of 489515528377 is 773825515984.

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

It can be written as a sum of positive squares in 2 ways, for example, as 362092231081 + 127423297296 = 601741^2 + 356964^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489515528377 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (489515528317) 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, 14397515524 + ... + 14397515557.

It is an arithmetic number, because the mean of its divisors is an integer number (129577639869).

Almost surely, 2^489515528377 is an apocalyptic number.

It is an amenable number.

489515528377 is a deficient number, since it is larger than the sum of its proper divisors (28795031099).

489515528377 is a wasteful number, since it uses less digits than its factorization.

489515528377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28795031098.

The product of its digits is 84672000, while the sum is 64.

The spelling of 489515528377 in words is "four hundred eighty-nine billion, five hundred fifteen million, five hundred twenty-eight thousand, three hundred seventy-seven".