289420185517 has 16 divisors (see below), whose sum is σ = 306299635200. Its totient is φ = 272707147440.

The previous prime is 289420185473. The next prime is 289420185539. The reversal of 289420185517 is 715581024982.

It is not a de Polignac number, because 289420185517 - 2³¹ = 287272701869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289420185547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6226878 + ... + 6273184.

It is an arithmetic number, because the mean of its divisors is an integer number (19143727200).

Almost surely, 2^289420185517 is an apocalyptic number.

It is an amenable number.

289420185517 is a deficient number, since it is larger than the sum of its proper divisors (16879449683).

289420185517 is a wasteful number, since it uses less digits than its factorization.

289420185517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48096.

The product of its (nonzero) digits is 1612800, while the sum is 52.

The spelling of 289420185517 in words is "two hundred eighty-nine billion, four hundred twenty million, one hundred eighty-five thousand, five hundred seventeen".