136173736019 has 2 divisors, whose sum is σ = 136173736020. Its totient is φ = 136173736018.

The previous prime is 136173735979. The next prime is 136173736121. The reversal of 136173736019 is 910637371631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136173736019 - 2¹² = 136173731923 is a prime.

It is a super-2 number, since 2×136173736019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (136173736219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68086868009 + 68086868010.

It is an arithmetic number, because the mean of its divisors is an integer number (68086868010).

Almost surely, 2^136173736019 is an apocalyptic number.

136173736019 is a deficient number, since it is larger than the sum of its proper divisors (1).

136173736019 is an equidigital number, since it uses as much as digits as its factorization.

136173736019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 428652, while the sum is 47.

The spelling of 136173736019 in words is "one hundred thirty-six billion, one hundred seventy-three million, seven hundred thirty-six thousand, nineteen".