191140917763 has 2 divisors, whose sum is σ = 191140917764. Its totient is φ = 191140917762.

The previous prime is 191140917743. The next prime is 191140917823. The reversal of 191140917763 is 367719041191.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 191140917763 - 2³³ = 182550983171 is a prime.

It is not a weakly prime, because it can be changed into another prime (191140917743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95570458881 + 95570458882.

It is an arithmetic number, because the mean of its divisors is an integer number (95570458882).

Almost surely, 2^191140917763 is an apocalyptic number.

191140917763 is a deficient number, since it is larger than the sum of its proper divisors (1).

191140917763 is an equidigital number, since it uses as much as digits as its factorization.

191140917763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 49.

The spelling of 191140917763 in words is "one hundred ninety-one billion, one hundred forty million, nine hundred seventeen thousand, seven hundred sixty-three".