28173195401 has 8 divisors (see below), whose sum is σ = 30558642240. Its totient is φ = 25818931152.

The previous prime is 28173195389. The next prime is 28173195409. The reversal of 28173195401 is 10459137182.

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 28173195401 - 2²² = 28169001097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28173195409) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7793765 + ... + 7797378.

It is an arithmetic number, because the mean of its divisors is an integer number (3819830280).

Almost surely, 2^28173195401 is an apocalyptic number.

It is an amenable number.

28173195401 is a deficient number, since it is larger than the sum of its proper divisors (2385446839).

28173195401 is a wasteful number, since it uses less digits than its factorization.

28173195401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15591295.

The product of its (nonzero) digits is 60480, while the sum is 41.

The spelling of 28173195401 in words is "twenty-eight billion, one hundred seventy-three million, one hundred ninety-five thousand, four hundred one".