136331487108 has 18 divisors (see below), whose sum is σ = 344615703614. Its totient is φ = 45443829024.

The previous prime is 136331487101. The next prime is 136331487109. The reversal of 136331487108 is 801784133631.

136331487108 is a `hidden beast` number, since 1 + 3 + 63 + 3 + 1 + 487 + 108 = 666.

It can be written as a sum of positive squares in only one way, i.e., 135776036484 + 555450624 = 368478^2 + 23568^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (136331487101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1893492841 + ... + 1893492912.

Almost surely, 2^136331487108 is an apocalyptic number.

136331487108 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

136331487108 is an abundant number, since it is smaller than the sum of its proper divisors (208284216506).

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

136331487108 is a wasteful number, since it uses less digits than its factorization.

136331487108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3786985763 (or 3786985758 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The spelling of 136331487108 in words is "one hundred thirty-six billion, three hundred thirty-one million, four hundred eighty-seven thousand, one hundred eight".