136405726703 has 2 divisors, whose sum is σ = 136405726704. Its totient is φ = 136405726702.

The previous prime is 136405726673. The next prime is 136405726739. The reversal of 136405726703 is 307627504631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136405726703 - 2²⁰ = 136404678127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136405726903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68202863351 + 68202863352.

It is an arithmetic number, because the mean of its divisors is an integer number (68202863352).

Almost surely, 2^136405726703 is an apocalyptic number.

136405726703 is a deficient number, since it is larger than the sum of its proper divisors (1).

136405726703 is an equidigital number, since it uses as much as digits as its factorization.

136405726703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 44.

The spelling of 136405726703 in words is "one hundred thirty-six billion, four hundred five million, seven hundred twenty-six thousand, seven hundred three".