489852515440 has 40 divisors (see below), whose sum is σ = 1139139545760. Its totient is φ = 195901015296.

The previous prime is 489852515429. The next prime is 489852515461. The reversal of 489852515440 is 44515258984.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

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, 228879 + ... + 1015918.

It is an arithmetic number, because the mean of its divisors is an integer number (28478488644).

Almost surely, 2^489852515440 is an apocalyptic number.

489852515440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

489852515440 is an abundant number, since it is smaller than the sum of its proper divisors (649287030320).

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

489852515440 is a wasteful number, since it uses less digits than its factorization.

489852515440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249729 (or 1249723 counting only the distinct ones).

The product of its (nonzero) digits is 9216000, while the sum is 55.

The spelling of 489852515440 in words is "four hundred eighty-nine billion, eight hundred fifty-two million, five hundred fifteen thousand, four hundred forty".