191259061914629 has 2 divisors, whose sum is σ = 191259061914630. Its totient is φ = 191259061914628.

The previous prime is 191259061914581. The next prime is 191259061914649. The reversal of 191259061914629 is 926419160952191.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 167831429070529 + 23427632844100 = 12954977^2 + 4840210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-191259061914629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (191259061914649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 95629530957314 + 95629530957315.

It is an arithmetic number, because the mean of its divisors is an integer number (95629530957315).

Almost surely, 2^{191259061914629} is an apocalyptic number.

It is an amenable number.

191259061914629 is a deficient number, since it is larger than the sum of its proper divisors (1).

191259061914629 is an equidigital number, since it uses as much as digits as its factorization.

191259061914629 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18895680, while the sum is 65.

The spelling of 191259061914629 in words is "one hundred ninety-one trillion, two hundred fifty-nine billion, sixty-one million, nine hundred fourteen thousand, six hundred twenty-nine".