136680705870637 has 4 divisors (see below), whose sum is σ = 139859326937440. Its totient is φ = 133502084803836.

The previous prime is 136680705870593. The next prime is 136680705870649. The reversal of 136680705870637 is 736078507086631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 136680705870637 - 2¹⁵ = 136680705837869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136680705877637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589310533337 + ... + 1589310533422.

It is an arithmetic number, because the mean of its divisors is an integer number (34964831734360).

Almost surely, 2^{136680705870637} is an apocalyptic number.

It is an amenable number.

136680705870637 is a deficient number, since it is larger than the sum of its proper divisors (3178621066803).

136680705870637 is an equidigital number, since it uses as much as digits as its factorization.

136680705870637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3178621066802.

The product of its (nonzero) digits is 213373440, while the sum is 67.

The spelling of 136680705870637 in words is "one hundred thirty-six trillion, six hundred eighty billion, seven hundred five million, eight hundred seventy thousand, six hundred thirty-seven".