289862715320 has 64 divisors (see below), whose sum is σ = 690778471680. Its totient is φ = 109089519616.

The previous prime is 289862715283. The next prime is 289862715323. The reversal of 289862715320 is 23517268982.

It is a Cunningham number, because it is equal to 538389²-1.

It is a super-3 number, since 3×289862715320³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289862715323) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 2086262 + ... + 2220858.

It is an arithmetic number, because the mean of its divisors is an integer number (10793413620).

Almost surely, 2^289862715320 is an apocalyptic number.

289862715320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

289862715320 is an abundant number, since it is smaller than the sum of its proper divisors (400915756360).

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

289862715320 is a wasteful number, since it uses less digits than its factorization.

289862715320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137792 (or 137788 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 53.

The spelling of 289862715320 in words is "two hundred eighty-nine billion, eight hundred sixty-two million, seven hundred fifteen thousand, three hundred twenty".