289439089064 has 32 divisors (see below), whose sum is σ = 553248753120. Its totient is φ = 141909158976.

The previous prime is 289439089033. The next prime is 289439089081. The reversal of 289439089064 is 460980934982.

It is a junction number, because it is equal to n+sod(n) for n = 289439088988 and 289439089006.

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, 566687 + ... + 948689.

It is an arithmetic number, because the mean of its divisors is an integer number (17289023535).

Almost surely, 2^289439089064 is an apocalyptic number.

It is an amenable number.

289439089064 is a deficient number, since it is larger than the sum of its proper divisors (263809664056).

289439089064 is a wasteful number, since it uses less digits than its factorization.

289439089064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383849 (or 383845 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 62.

The spelling of 289439089064 in words is "two hundred eighty-nine billion, four hundred thirty-nine million, eighty-nine thousand, sixty-four".