136646254447 has 2 divisors, whose sum is σ = 136646254448. Its totient is φ = 136646254446.

The previous prime is 136646254441. The next prime is 136646254471. The reversal of 136646254447 is 744452646631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 136646254447 - 2⁷ = 136646254319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 136646254394 and 136646254403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (136646254441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68323127223 + 68323127224.

It is an arithmetic number, because the mean of its divisors is an integer number (68323127224).

Almost surely, 2^136646254447 is an apocalyptic number.

136646254447 is a deficient number, since it is larger than the sum of its proper divisors (1).

136646254447 is an equidigital number, since it uses as much as digits as its factorization.

136646254447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11612160, while the sum is 52.

The spelling of 136646254447 in words is "one hundred thirty-six billion, six hundred forty-six million, two hundred fifty-four thousand, four hundred forty-seven".