289380718252 has 12 divisors (see below), whose sum is σ = 506426036256. Its totient is φ = 144687565040.

The previous prime is 289380718243. The next prime is 289380718271. The reversal of 289380718252 is 252817083982.

It is a junction number, because it is equal to n+sod(n) for n = 289380718193 and 289380718202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 456148 + ... + 887035.

It is an arithmetic number, because the mean of its divisors is an integer number (42202169688).

Almost surely, 2^289380718252 is an apocalyptic number.

It is an amenable number.

289380718252 is a deficient number, since it is larger than the sum of its proper divisors (217045318004).

289380718252 is a wasteful number, since it uses less digits than its factorization.

289380718252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1397048 (or 1397046 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 289380718252 in words is "two hundred eighty-nine billion, three hundred eighty million, seven hundred eighteen thousand, two hundred fifty-two".