489709907984 has 40 divisors (see below), whose sum is σ = 1044742248288. Its totient is φ = 220515073280.

The previous prime is 489709907971. The next prime is 489709908031.

489709907984 is nontrivially palindromic in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12983237 + ... + 13020900.

Almost surely, 2^489709907984 is an apocalyptic number.

489709907984 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

489709907984 is an abundant number, since it is smaller than the sum of its proper divisors (555032340304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

489709907984 is a wasteful number, since it uses less digits than its factorization.

489709907984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26004263 (or 26004257 counting only the distinct ones).

The product of its (nonzero) digits is 329204736, while the sum is 74.

The spelling of 489709907984 in words is "four hundred eighty-nine billion, seven hundred nine million, nine hundred seven thousand, nine hundred eighty-four".