489178516 has 6 divisors (see below), whose sum is σ = 856062410. Its totient is φ = 244589256.

The previous prime is 489178493. The next prime is 489178561. The reversal of 489178516 is 615871984.

It can be written as a sum of positive squares in only one way, i.e., 475414416 + 13764100 = 21804^2 + 3710^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 489178516.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61147311 + ... + 61147318.

Almost surely, 2^489178516 is an apocalyptic number.

It is an amenable number.

489178516 is a deficient number, since it is larger than the sum of its proper divisors (366883894).

489178516 is a wasteful number, since it uses less digits than its factorization.

489178516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122294633 (or 122294631 counting only the distinct ones).

The product of its digits is 483840, while the sum is 49.

The square root of 489178516 is about 22117.3804054639. The cubic root of 489178516 is about 787.9327010130.

The spelling of 489178516 in words is "four hundred eighty-nine million, one hundred seventy-eight thousand, five hundred sixteen".