136940885239 has 16 divisors (see below), whose sum is σ = 142831260000. Its totient is φ = 131129631360.

The previous prime is 136940885219. The next prime is 136940885243. The reversal of 136940885239 is 932588049631.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-136940885239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136940885219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6786337 + ... + 6806485.

It is an arithmetic number, because the mean of its divisors is an integer number (8926953750).

Almost surely, 2^136940885239 is an apocalyptic number.

136940885239 is a deficient number, since it is larger than the sum of its proper divisors (5890374761).

136940885239 is a wasteful number, since it uses less digits than its factorization.

136940885239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22098.

The product of its (nonzero) digits is 11197440, while the sum is 58.

The spelling of 136940885239 in words is "one hundred thirty-six billion, nine hundred forty million, eight hundred eighty-five thousand, two hundred thirty-nine".