919160949191 has 2 divisors, whose sum is σ = 919160949192. Its totient is φ = 919160949190.

The previous prime is 919160949181. The next prime is 919160949209. The reversal of 919160949191 is 191949061919.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-919160949191 is a prime.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 919160949191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (919160949181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 459580474595 + 459580474596.

It is an arithmetic number, because the mean of its divisors is an integer number (459580474596).

Almost surely, 2^919160949191 is an apocalyptic number.

919160949191 is a deficient number, since it is larger than the sum of its proper divisors (1).

919160949191 is an equidigital number, since it uses as much as digits as its factorization.

919160949191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1417176, while the sum is 59.

The spelling of 919160949191 in words is "nine hundred nineteen billion, one hundred sixty million, nine hundred forty-nine thousand, one hundred ninety-one".