136539849818 has 8 divisors (see below), whose sum is σ = 204811675200. Its totient is φ = 68269291420.

The previous prime is 136539849811. The next prime is 136539849821. The reversal of 136539849818 is 818948935631.

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

It is not an unprimeable number, because it can be changed into a prime (136539849811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27503 + ... + 523293.

It is an arithmetic number, because the mean of its divisors is an integer number (25601459400).

Almost surely, 2^136539849818 is an apocalyptic number.

136539849818 is a deficient number, since it is larger than the sum of its proper divisors (68271825382).

136539849818 is a wasteful number, since it uses less digits than its factorization.

136539849818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 633492.

The product of its digits is 44789760, while the sum is 65.

The spelling of 136539849818 in words is "one hundred thirty-six billion, five hundred thirty-nine million, eight hundred forty-nine thousand, eight hundred eighteen".