136890255689 has 8 divisors (see below), whose sum is σ = 152152463232. Its totient is φ = 122097654640.

The previous prime is 136890255679. The next prime is 136890255701. The reversal of 136890255689 is 986552098631.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136890255689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136890255629) 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, 117401009 + ... + 117402174.

It is an arithmetic number, because the mean of its divisors is an integer number (19019057904).

Almost surely, 2^136890255689 is an apocalyptic number.

It is an amenable number.

136890255689 is a deficient number, since it is larger than the sum of its proper divisors (15262207543).

136890255689 is a wasteful number, since it uses less digits than its factorization.

136890255689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234803247.

The product of its (nonzero) digits is 27993600, while the sum is 62.

The spelling of 136890255689 in words is "one hundred thirty-six billion, eight hundred ninety million, two hundred fifty-five thousand, six hundred eighty-nine".