136681888540 has 12 divisors (see below), whose sum is σ = 287031965976. Its totient is φ = 54672755408.

The previous prime is 136681888537. The next prime is 136681888613. The reversal of 136681888540 is 45888186631.

It is a congruent number.

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, 3417047194 + ... + 3417047233.

It is an arithmetic number, because the mean of its divisors is an integer number (23919330498).

Almost surely, 2^136681888540 is an apocalyptic number.

136681888540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136681888540 is an abundant number, since it is smaller than the sum of its proper divisors (150350077436).

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

136681888540 is a wasteful number, since it uses less digits than its factorization.

136681888540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6834094436 (or 6834094434 counting only the distinct ones).

The product of its (nonzero) digits is 8847360, while the sum is 58.

The spelling of 136681888540 in words is "one hundred thirty-six billion, six hundred eighty-one million, eight hundred eighty-eight thousand, five hundred forty".