489758243247 has 48 divisors (see below), whose sum is σ = 871040701440. Its totient is φ = 258227390016.

The previous prime is 489758243213. The next prime is 489758243257. The reversal of 489758243247 is 742342857984.

It is a happy number.

489758243247 is a `hidden beast` number, since 4 + 8 + 9 + 7 + 582 + 4 + 3 + 2 + 47 = 666.

It is not a de Polignac number, because 489758243247 - 2²⁴ = 489741466031 is a prime.

It is a super-2 number, since 2×489758243247² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489758243257) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1881904 + ... + 2126282.

It is an arithmetic number, because the mean of its divisors is an integer number (18146681280).

Almost surely, 2^489758243247 is an apocalyptic number.

489758243247 is a deficient number, since it is larger than the sum of its proper divisors (381282458193).

489758243247 is a wasteful number, since it uses less digits than its factorization.

489758243247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246852 (or 246849 counting only the distinct ones).

The product of its digits is 108380160, while the sum is 63.

The spelling of 489758243247 in words is "four hundred eighty-nine billion, seven hundred fifty-eight million, two hundred forty-three thousand, two hundred forty-seven".