15794240191 has 2 divisors, whose sum is σ = 15794240192. Its totient is φ = 15794240190.

The previous prime is 15794240171. The next prime is 15794240213. The reversal of 15794240191 is 19104249751.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15794240191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15794240171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7897120095 + 7897120096.

It is an arithmetic number, because the mean of its divisors is an integer number (7897120096).

Almost surely, 2^15794240191 is an apocalyptic number.

15794240191 is a deficient number, since it is larger than the sum of its proper divisors (1).

15794240191 is an equidigital number, since it uses as much as digits as its factorization.

15794240191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90720, while the sum is 43.

The spelling of 15794240191 in words is "fifteen billion, seven hundred ninety-four million, two hundred forty thousand, one hundred ninety-one".