28340173345 has 16 divisors (see below), whose sum is σ = 37150119360. Its totient is φ = 20583115200.

The previous prime is 28340173297. The next prime is 28340173417. The reversal of 28340173345 is 54337104382.

It is not a de Polignac number, because 28340173345 - 2¹³ = 28340165153 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28340173298 and 28340173307.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307986 + ... + 389275.

It is an arithmetic number, because the mean of its divisors is an integer number (2321882460).

Almost surely, 2^28340173345 is an apocalyptic number.

It is an amenable number.

28340173345 is a deficient number, since it is larger than the sum of its proper divisors (8809946015).

28340173345 is a wasteful number, since it uses less digits than its factorization.

28340173345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 698016.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 28340173345 in words is "twenty-eight billion, three hundred forty million, one hundred seventy-three thousand, three hundred forty-five".