191010436063 has 2 divisors, whose sum is σ = 191010436064. Its totient is φ = 191010436062.

The previous prime is 191010436027. The next prime is 191010436073. The reversal of 191010436063 is 360634010191.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191010436063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191010436073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95505218031 + 95505218032.

It is an arithmetic number, because the mean of its divisors is an integer number (95505218032).

Almost surely, 2^191010436063 is an apocalyptic number.

191010436063 is a deficient number, since it is larger than the sum of its proper divisors (1).

191010436063 is an equidigital number, since it uses as much as digits as its factorization.

191010436063 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11664, while the sum is 34.

The spelling of 191010436063 in words is "one hundred ninety-one billion, ten million, four hundred thirty-six thousand, sixty-three".