136518594844691 has 2 divisors, whose sum is σ = 136518594844692. Its totient is φ = 136518594844690.

The previous prime is 136518594844633. The next prime is 136518594844703. The reversal of 136518594844691 is 196448495815631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 136518594844691 - 2³⁰ = 136517521102867 is a prime.

It is not a weakly prime, because it can be changed into another prime (136518594844591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68259297422345 + 68259297422346.

It is an arithmetic number, because the mean of its divisors is an integer number (68259297422346).

Almost surely, 2^{136518594844691} is an apocalyptic number.

136518594844691 is a deficient number, since it is larger than the sum of its proper divisors (1).

136518594844691 is an equidigital number, since it uses as much as digits as its factorization.

136518594844691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 895795200, while the sum is 74.

The spelling of 136518594844691 in words is "one hundred thirty-six trillion, five hundred eighteen billion, five hundred ninety-four million, eight hundred forty-four thousand, six hundred ninety-one".