136474842089 has 2 divisors, whose sum is σ = 136474842090. Its totient is φ = 136474842088.

The previous prime is 136474842067. The next prime is 136474842137. The reversal of 136474842089 is 980248474631.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 136111558489 + 363283600 = 368933^2 + 19060^2 .

It is a cyclic number.

It is not a de Polignac number, because 136474842089 - 2¹⁶ = 136474776553 is a prime.

It is not a weakly prime, because it can be changed into another prime (136474802089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68237421044 + 68237421045.

It is an arithmetic number, because the mean of its divisors is an integer number (68237421045).

Almost surely, 2^136474842089 is an apocalyptic number.

It is an amenable number.

136474842089 is a deficient number, since it is larger than the sum of its proper divisors (1).

136474842089 is an equidigital number, since it uses as much as digits as its factorization.

136474842089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 136474842089 in words is "one hundred thirty-six billion, four hundred seventy-four million, eight hundred forty-two thousand, eighty-nine".