136918211219 has 2 divisors, whose sum is σ = 136918211220. Its totient is φ = 136918211218.

The previous prime is 136918211203. The next prime is 136918211347. The reversal of 136918211219 is 912112819631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136918211219 - 2⁴ = 136918211203 is a prime.

It is a super-2 number, since 2×136918211219² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136918211219.

It is not a weakly prime, because it can be changed into another prime (136918211819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68459105609 + 68459105610.

It is an arithmetic number, because the mean of its divisors is an integer number (68459105610).

Almost surely, 2^136918211219 is an apocalyptic number.

136918211219 is a deficient number, since it is larger than the sum of its proper divisors (1).

136918211219 is an equidigital number, since it uses as much as digits as its factorization.

136918211219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 44.

The spelling of 136918211219 in words is "one hundred thirty-six billion, nine hundred eighteen million, two hundred eleven thousand, two hundred nineteen".