136844598897 has 6 divisors (see below), whose sum is σ = 197664420642. Its totient is φ = 91229732592.

The previous prime is 136844598851. The next prime is 136844598937. The reversal of 136844598897 is 798895448631.

136844598897 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 4 + 459 + 88 + 97 = 666.

It can be written as a sum of positive squares in only one way, i.e., 130558646241 + 6285952656 = 361329^2 + 79284^2 .

It is not a de Polignac number, because 136844598897 - 2²² = 136840404593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136844518897) 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 in 5 ways as a sum of consecutive naturals, for example, 7602477708 + ... + 7602477725.

It is an arithmetic number, because the mean of its divisors is an integer number (32944070107).

Almost surely, 2^136844598897 is an apocalyptic number.

It is an amenable number.

136844598897 is a deficient number, since it is larger than the sum of its proper divisors (60819821745).

136844598897 is a wasteful number, since it uses less digits than its factorization.

136844598897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15204955439 (or 15204955436 counting only the distinct ones).

The product of its digits is 418037760, while the sum is 72.

The spelling of 136844598897 in words is "one hundred thirty-six billion, eight hundred forty-four million, five hundred ninety-eight thousand, eight hundred ninety-seven".