28480832173 has 16 divisors (see below), whose sum is σ = 33123496320. Its totient is φ = 24290551296.

The previous prime is 28480832131. The next prime is 28480832209. The reversal of 28480832173 is 37123808482.

It is a cyclic number.

It is not a de Polignac number, because 28480832173 - 2¹³ = 28480823981 is a prime.

It is a super-2 number, since 2×28480832173² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28480832273) 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, 1909440 + ... + 1924297.

It is an arithmetic number, because the mean of its divisors is an integer number (2070218520).

Almost surely, 2^28480832173 is an apocalyptic number.

28480832173 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28480832173 is a deficient number, since it is larger than the sum of its proper divisors (4642664147).

28480832173 is a wasteful number, since it uses less digits than its factorization.

28480832173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3833796.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 28480832173 in words is "twenty-eight billion, four hundred eighty million, eight hundred thirty-two thousand, one hundred seventy-three".