136193486889 has 8 divisors (see below), whose sum is σ = 183354338752. Its totient is φ = 89914146480.

The previous prime is 136193486881. The next prime is 136193486927. The reversal of 136193486889 is 988684391631.

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

It is not a de Polignac number, because 136193486889 - 2³ = 136193486881 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (136193486881) 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, 220377502 + ... + 220378119.

It is an arithmetic number, because the mean of its divisors is an integer number (22919292344).

Almost surely, 2^136193486889 is an apocalyptic number.

It is an amenable number.

136193486889 is a deficient number, since it is larger than the sum of its proper divisors (47160851863).

136193486889 is a wasteful number, since it uses less digits than its factorization.

136193486889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440755727.

The product of its digits is 53747712, while the sum is 66.

The spelling of 136193486889 in words is "one hundred thirty-six billion, one hundred ninety-three million, four hundred eighty-six thousand, eight hundred eighty-nine".