489569385557340 has 144 divisors (see below), whose sum is σ = 1620918276397056. Its totient is φ = 118618383139200.

The previous prime is 489569385557323. The next prime is 489569385557381. The reversal of 489569385557340 is 43755583965984.

489569385557340 is a `hidden beast` number, since 4 + 8 + 9 + 5 + 6 + 9 + 38 + 5 + 5 + 573 + 4 + 0 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 489569385557340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64206496 + ... + 71425575.

It is an arithmetic number, because the mean of its divisors is an integer number (11256376919424).

Almost surely, 2^{489569385557340} is an apocalyptic number.

It is an amenable number.

489569385557340 is an abundant number, since it is smaller than the sum of its proper divisors (1131348890839716).

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

489569385557340 is a wasteful number, since it uses less digits than its factorization.

489569385557340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135633920 (or 135633915 counting only the distinct ones).

The product of its (nonzero) digits is 19595520000, while the sum is 81.

The spelling of 489569385557340 in words is "four hundred eighty-nine trillion, five hundred sixty-nine billion, three hundred eighty-five million, five hundred fifty-seven thousand, three hundred forty".