136109689135780 has 12 divisors (see below), whose sum is σ = 285830347185180. Its totient is φ = 54443875654304.

The previous prime is 136109689135733. The next prime is 136109689135793. The reversal of 136109689135780 is 87531986901631.

It can be written as a sum of positive squares in 2 ways, for example, as 22185531863104 + 113924157272676 = 4710152^2 + 10673526^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3402742228375 + ... + 3402742228414.

It is an arithmetic number, because the mean of its divisors is an integer number (23819195598765).

Almost surely, 2^{136109689135780} is an apocalyptic number.

136109689135780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136109689135780 is an abundant number, since it is smaller than the sum of its proper divisors (149720658049400).

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

136109689135780 is a wasteful number, since it uses less digits than its factorization.

136109689135780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6805484456798 (or 6805484456796 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 67.

The spelling of 136109689135780 in words is "one hundred thirty-six trillion, one hundred nine billion, six hundred eighty-nine million, one hundred thirty-five thousand, seven hundred eighty".