136423424076839 has 2 divisors, whose sum is σ = 136423424076840. Its totient is φ = 136423424076838.

The previous prime is 136423424076781. The next prime is 136423424076851. The reversal of 136423424076839 is 938670424324631.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136423424076839 is a prime.

It is a super-2 number, since 2×136423424076839² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136423424076139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68211712038419 + 68211712038420.

It is an arithmetic number, because the mean of its divisors is an integer number (68211712038420).

Almost surely, 2^{136423424076839} is an apocalyptic number.

136423424076839 is a deficient number, since it is larger than the sum of its proper divisors (1).

136423424076839 is an equidigital number, since it uses as much as digits as its factorization.

136423424076839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125411328, while the sum is 62.

The spelling of 136423424076839 in words is "one hundred thirty-six trillion, four hundred twenty-three billion, four hundred twenty-four million, seventy-six thousand, eight hundred thirty-nine".