136643589717 has 8 divisors (see below), whose sum is σ = 182215172640. Its totient is φ = 91083866640.

The previous prime is 136643589683. The next prime is 136643589779. The reversal of 136643589717 is 717985346631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 136643589717 - 2⁸ = 136643589461 is a prime.

It is a super-2 number, since 2×136643589717² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136643589617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2938042 + ... + 2984187.

It is an arithmetic number, because the mean of its divisors is an integer number (22776896580).

Almost surely, 2^136643589717 is an apocalyptic number.

It is an amenable number.

136643589717 is a deficient number, since it is larger than the sum of its proper divisors (45571582923).

136643589717 is an equidigital number, since it uses as much as digits as its factorization.

136643589717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5929923.

The product of its digits is 22861440, while the sum is 60.

The spelling of 136643589717 in words is "one hundred thirty-six billion, six hundred forty-three million, five hundred eighty-nine thousand, seven hundred seventeen".