289568901220 has 24 divisors (see below), whose sum is σ = 608114078208. Its totient is φ = 115823868000.

The previous prime is 289568901179. The next prime is 289568901241. The reversal of 289568901220 is 22109865982.

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, 463165 + ... + 890875.

It is an arithmetic number, because the mean of its divisors is an integer number (25338086592).

Almost surely, 2^289568901220 is an apocalyptic number.

289568901220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289568901220 is an abundant number, since it is smaller than the sum of its proper divisors (318545176988).

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

289568901220 is a wasteful number, since it uses less digits than its factorization.

289568901220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 461571 (or 461569 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 52.

The spelling of 289568901220 in words is "two hundred eighty-nine billion, five hundred sixty-eight million, nine hundred one thousand, two hundred twenty".