28372927548191 has 4 divisors (see below), whose sum is σ = 29288183275584. Its totient is φ = 27457671820800.

The previous prime is 28372927548151. The next prime is 28372927548209. The reversal of 28372927548191 is 19184572927382.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28372927548191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28372927548151) 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, 457627863650 + ... + 457627863711.

It is an arithmetic number, because the mean of its divisors is an integer number (7322045818896).

Almost surely, 2^{28372927548191} is an apocalyptic number.

28372927548191 is a deficient number, since it is larger than the sum of its proper divisors (915255727393).

28372927548191 is an equidigital number, since it uses as much as digits as its factorization.

28372927548191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 915255727392.

The product of its digits is 121927680, while the sum is 68.

The spelling of 28372927548191 in words is "twenty-eight trillion, three hundred seventy-two billion, nine hundred twenty-seven million, five hundred forty-eight thousand, one hundred ninety-one".