136684017870 has 32 divisors (see below), whose sum is σ = 335670521472. Its totient is φ = 35601418272.

The previous prime is 136684017859. The next prime is 136684017887. The reversal of 136684017870 is 78710486631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52977012 + ... + 52979591.

It is an arithmetic number, because the mean of its divisors is an integer number (10489703796).

Almost surely, 2^136684017870 is an apocalyptic number.

136684017870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

136684017870 is an abundant number, since it is smaller than the sum of its proper divisors (198986503602).

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

136684017870 is a wasteful number, since it uses less digits than its factorization.

136684017870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105956656.

The product of its (nonzero) digits is 1354752, while the sum is 51.

The spelling of 136684017870 in words is "one hundred thirty-six billion, six hundred eighty-four million, seventeen thousand, eight hundred seventy".