10905207191 has 2 divisors, whose sum is σ = 10905207192. Its totient is φ = 10905207190.

The previous prime is 10905207161. The next prime is 10905207197. The reversal of 10905207191 is 19170250901.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10905207191 is a prime.

It is a super-2 number, since 2×10905207191² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10905207197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5452603595 + 5452603596.

It is an arithmetic number, because the mean of its divisors is an integer number (5452603596).

Almost surely, 2^10905207191 is an apocalyptic number.

10905207191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10905207191 is an equidigital number, since it uses as much as digits as its factorization.

10905207191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 35.

The spelling of 10905207191 in words is "ten billion, nine hundred five million, two hundred seven thousand, one hundred ninety-one".