919140914191 has 16 divisors (see below), whose sum is σ = 984790056960. Its totient is φ = 855354880800.

The previous prime is 919140914177. The next prime is 919140914203. The reversal of 919140914191 is 191419041919.

It is a cyclic number.

It is not a de Polignac number, because 919140914191 - 2⁷ = 919140914063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (919140914141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1641991 + ... + 2129416.

It is an arithmetic number, because the mean of its divisors is an integer number (61549378560).

Almost surely, 2^919140914191 is an apocalyptic number.

919140914191 is a deficient number, since it is larger than the sum of its proper divisors (65649142769).

919140914191 is a wasteful number, since it uses less digits than its factorization.

919140914191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3771654.

The product of its (nonzero) digits is 104976, while the sum is 49.

The spelling of 919140914191 in words is "nine hundred nineteen billion, one hundred forty million, nine hundred fourteen thousand, one hundred ninety-one".