136728855712 has 24 divisors (see below), whose sum is σ = 278467175700. Its totient is φ = 66007033344.

The previous prime is 136728855689. The next prime is 136728855751. The reversal of 136728855712 is 217558827631.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 132120618256 + 4608237456 = 363484^2 + 67884^2 .

It is an unprimeable number.

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, 73667637 + ... + 73669492.

Almost surely, 2^136728855712 is an apocalyptic number.

It is an amenable number.

136728855712 is an abundant number, since it is smaller than the sum of its proper divisors (141738319988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136728855712 is a wasteful number, since it uses less digits than its factorization.

136728855712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147337168 (or 147337160 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 55.

The spelling of 136728855712 in words is "one hundred thirty-six billion, seven hundred twenty-eight million, eight hundred fifty-five thousand, seven hundred twelve".