136527420637 has 4 divisors (see below), whose sum is σ = 136878391260. Its totient is φ = 136176450016.

The previous prime is 136527420613. The next prime is 136527420641. The reversal of 136527420637 is 736024725631.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 100071628281 + 36455792356 = 316341^2 + 190934^2 .

It is a cyclic number.

It is not a de Polignac number, because 136527420637 - 2³¹ = 134379936989 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 (136527420437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175484728 + ... + 175485505.

It is an arithmetic number, because the mean of its divisors is an integer number (34219597815).

Almost surely, 2^136527420637 is an apocalyptic number.

It is an amenable number.

136527420637 is a deficient number, since it is larger than the sum of its proper divisors (350970623).

136527420637 is an equidigital number, since it uses as much as digits as its factorization.

136527420637 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350970622.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The spelling of 136527420637 in words is "one hundred thirty-six billion, five hundred twenty-seven million, four hundred twenty thousand, six hundred thirty-seven".