28069058165 has 8 divisors (see below), whose sum is σ = 33723901368. Its totient is φ = 22427892160.

The previous prime is 28069058123. The next prime is 28069058177. The reversal of 28069058165 is 56185096082.

It can be written as a sum of positive squares in 4 ways, for example, as 2003278564 + 26065779601 = 44758^2 + 161449^2 .

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

It is not a de Polignac number, because 28069058165 - 2⁸ = 28069057909 is a prime.

It is a Duffinian number.

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, 3414782 + ... + 3422991.

It is an arithmetic number, because the mean of its divisors is an integer number (4215487671).

Almost surely, 2^28069058165 is an apocalyptic number.

It is an amenable number.

28069058165 is a deficient number, since it is larger than the sum of its proper divisors (5654843203).

28069058165 is an equidigital number, since it uses as much as digits as its factorization.

28069058165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6838599.

The product of its (nonzero) digits is 1036800, while the sum is 50.

The spelling of 28069058165 in words is "twenty-eight billion, sixty-nine million, fifty-eight thousand, one hundred sixty-five".