28239073165 has 8 divisors (see below), whose sum is σ = 33920148960. Its totient is φ = 22569084432.

The previous prime is 28239073157. The next prime is 28239073231. The reversal of 28239073165 is 56137093282.

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

It is a cyclic number.

It is not a de Polignac number, because 28239073165 - 2³ = 28239073157 is a prime.

It is a congruent number.

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, 2766159 + ... + 2776348.

It is an arithmetic number, because the mean of its divisors is an integer number (4240018620).

Almost surely, 2^28239073165 is an apocalyptic number.

It is an amenable number.

28239073165 is a deficient number, since it is larger than the sum of its proper divisors (5681075795).

28239073165 is a wasteful number, since it uses less digits than its factorization.

28239073165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5543531.

The product of its (nonzero) digits is 544320, while the sum is 46.

The spelling of 28239073165 in words is "twenty-eight billion, two hundred thirty-nine million, seventy-three thousand, one hundred sixty-five".