136791444617 has 4 divisors (see below), whose sum is σ = 136792320720. Its totient is φ = 136790568516.

The previous prime is 136791444613. The next prime is 136791444619. The reversal of 136791444617 is 716444197631.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 136791444617 - 2² = 136791444613 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136791444613) 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, 133067 + ... + 539712.

It is an arithmetic number, because the mean of its divisors is an integer number (34198080180).

Almost surely, 2^136791444617 is an apocalyptic number.

It is an amenable number.

136791444617 is a deficient number, since it is larger than the sum of its proper divisors (876103).

136791444617 is an equidigital number, since it uses as much as digits as its factorization.

136791444617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876102.

The product of its digits is 3048192, while the sum is 53.

The spelling of 136791444617 in words is "one hundred thirty-six billion, seven hundred ninety-one million, four hundred forty-four thousand, six hundred seventeen".