136708992117609 has 4 divisors (see below), whose sum is σ = 182278656156816. Its totient is φ = 91139328078404.

The previous prime is 136708992117583. The next prime is 136708992117647. The reversal of 136708992117609 is 906711299807631.

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 136708992117609 - 2⁴¹ = 134509968862057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (136708992117409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22784832019599 + ... + 22784832019604.

It is an arithmetic number, because the mean of its divisors is an integer number (45569664039204).

Almost surely, 2^{136708992117609} is an apocalyptic number.

It is an amenable number.

136708992117609 is a deficient number, since it is larger than the sum of its proper divisors (45569664039207).

136708992117609 is an equidigital number, since it uses as much as digits as its factorization.

136708992117609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45569664039206.

The product of its (nonzero) digits is 61725888, while the sum is 69.

The spelling of 136708992117609 in words is "one hundred thirty-six trillion, seven hundred eight billion, nine hundred ninety-two million, one hundred seventeen thousand, six hundred nine".