28080038165 has 8 divisors (see below), whose sum is σ = 33708196440. Its totient is φ = 22455930112.

The previous prime is 28080038131. The next prime is 28080038177. The reversal of 28080038165 is 56183008082.

It can be written as a sum of positive squares in 4 ways, for example, as 5764757476 + 22315280689 = 75926^2 + 149383^2 .

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 28080038165 - 2¹² = 28080034069 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, 997280 + ... + 1025049.

It is an arithmetic number, because the mean of its divisors is an integer number (4213524555).

Almost surely, 2^28080038165 is an apocalyptic number.

It is an amenable number.

28080038165 is a deficient number, since it is larger than the sum of its proper divisors (5628158275).

28080038165 is a wasteful number, since it uses less digits than its factorization.

28080038165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2025111.

The product of its (nonzero) digits is 92160, while the sum is 41.

The spelling of 28080038165 in words is "twenty-eight billion, eighty million, thirty-eight thousand, one hundred sixty-five".