489872428461 has 24 divisors (see below), whose sum is σ = 773397279200. Its totient is φ = 296960548896.

The previous prime is 489872428439. The next prime is 489872428471. The reversal of 489872428461 is 164824278984.

489872428461 is a `hidden beast` number, since 4 + 89 + 8 + 72 + 4 + 28 + 461 = 666.

It is not a de Polignac number, because 489872428461 - 2⁹ = 489872427949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489872428471) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31238011 + ... + 31253688.

Almost surely, 2^489872428461 is an apocalyptic number.

It is an amenable number.

489872428461 is a deficient number, since it is larger than the sum of its proper divisors (283524850739).

489872428461 is a wasteful number, since it uses less digits than its factorization.

489872428461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62491785 (or 62491782 counting only the distinct ones).

The product of its digits is 49545216, while the sum is 63.

The spelling of 489872428461 in words is "four hundred eighty-nine billion, eight hundred seventy-two million, four hundred twenty-eight thousand, four hundred sixty-one".