136933539839 has 4 divisors (see below), whose sum is σ = 136958160456. Its totient is φ = 136908919224.

The previous prime is 136933539773. The next prime is 136933539881. The reversal of 136933539839 is 938935339631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 938935339631 = 67 ⋅14013960293.

It is a cyclic number.

It is not a de Polignac number, because 136933539839 - 2¹⁶ = 136933474303 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 (136933539889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12301964 + ... + 12313089.

It is an arithmetic number, because the mean of its divisors is an integer number (34239540114).

Almost surely, 2^136933539839 is an apocalyptic number.

136933539839 is a deficient number, since it is larger than the sum of its proper divisors (24620617).

136933539839 is an equidigital number, since it uses as much as digits as its factorization.

136933539839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24620616.

The product of its digits is 42515280, while the sum is 62.

The spelling of 136933539839 in words is "one hundred thirty-six billion, nine hundred thirty-three million, five hundred thirty-nine thousand, eight hundred thirty-nine".