828728119173 has 4 divisors (see below), whose sum is σ = 1104970825568. Its totient is φ = 552485412780.

The previous prime is 828728119159. The next prime is 828728119187. The reversal of 828728119173 is 371911827828.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (828728119159) and next prime (828728119187).

It is not a de Polignac number, because 828728119173 - 2⁴ = 828728119157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828728119273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138121353193 + ... + 138121353198.

It is an arithmetic number, because the mean of its divisors is an integer number (276242706392).

Almost surely, 2^828728119173 is an apocalyptic number.

It is an amenable number.

828728119173 is a deficient number, since it is larger than the sum of its proper divisors (276242706395).

828728119173 is a wasteful number, since it uses less digits than its factorization.

828728119173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276242706394.

The product of its digits is 2709504, while the sum is 57.

The spelling of 828728119173 in words is "eight hundred twenty-eight billion, seven hundred twenty-eight million, one hundred nineteen thousand, one hundred seventy-three".