136662487807 has 4 divisors (see below), whose sum is σ = 144701457696. Its totient is φ = 128623517920.

The previous prime is 136662487799. The next prime is 136662487837. The reversal of 136662487807 is 708784266631.

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

It is a cyclic number.

It is not a de Polignac number, because 136662487807 - 2³ = 136662487799 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 (136662487837) 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, 4019484919 + ... + 4019484952.

It is an arithmetic number, because the mean of its divisors is an integer number (36175364424).

Almost surely, 2^136662487807 is an apocalyptic number.

136662487807 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

136662487807 is a deficient number, since it is larger than the sum of its proper divisors (8038969889).

136662487807 is an equidigital number, since it uses as much as digits as its factorization.

136662487807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8038969888.

The product of its (nonzero) digits is 16257024, while the sum is 58.

The spelling of 136662487807 in words is "one hundred thirty-six billion, six hundred sixty-two million, four hundred eighty-seven thousand, eight hundred seven".