289320864506 has 8 divisors (see below), whose sum is σ = 452850048864. Its totient is φ = 138370848220.

The previous prime is 289320864479. The next prime is 289320864641. The reversal of 289320864506 is 605468023982.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3144791960 + ... + 3144792051.

It is an arithmetic number, because the mean of its divisors is an integer number (56606256108).

Almost surely, 2^289320864506 is an apocalyptic number.

289320864506 is a deficient number, since it is larger than the sum of its proper divisors (163529184358).

289320864506 is a wasteful number, since it uses less digits than its factorization.

289320864506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6289584036.

The product of its (nonzero) digits is 4976640, while the sum is 53.

The spelling of 289320864506 in words is "two hundred eighty-nine billion, three hundred twenty million, eight hundred sixty-four thousand, five hundred six".