28792316191 has 2 divisors, whose sum is σ = 28792316192. Its totient is φ = 28792316190.

The previous prime is 28792316171. The next prime is 28792316227. The reversal of 28792316191 is 19161329782.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 28792316191 - 2⁹ = 28792315679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28792316171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14396158095 + 14396158096.

It is an arithmetic number, because the mean of its divisors is an integer number (14396158096).

Almost surely, 2^28792316191 is an apocalyptic number.

28792316191 is a deficient number, since it is larger than the sum of its proper divisors (1).

28792316191 is an equidigital number, since it uses as much as digits as its factorization.

28792316191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 326592, while the sum is 49.

The spelling of 28792316191 in words is "twenty-eight billion, seven hundred ninety-two million, three hundred sixteen thousand, one hundred ninety-one".