289452392556 has 12 divisors (see below), whose sum is σ = 675388915992. Its totient is φ = 96484130848.

The previous prime is 289452392501. The next prime is 289452392617. The reversal of 289452392556 is 655293254982.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 289452392556.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12060516345 + ... + 12060516368.

It is an arithmetic number, because the mean of its divisors is an integer number (56282409666).

Almost surely, 2^289452392556 is an apocalyptic number.

It is an amenable number.

289452392556 is an abundant number, since it is smaller than the sum of its proper divisors (385936523436).

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

289452392556 is a wasteful number, since it uses less digits than its factorization.

289452392556 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24121032720 (or 24121032718 counting only the distinct ones).

The product of its digits is 46656000, while the sum is 60.

The spelling of 289452392556 in words is "two hundred eighty-nine billion, four hundred fifty-two million, three hundred ninety-two thousand, five hundred fifty-six".