136344443617 has 4 divisors (see below), whose sum is σ = 136345717440. Its totient is φ = 136343169796.

The previous prime is 136344443591. The next prime is 136344443633. The reversal of 136344443617 is 716344443631.

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 136344443617 - 2¹⁹ = 136343919329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136344443657) 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, 459973 + ... + 695890.

It is an arithmetic number, because the mean of its divisors is an integer number (34086429360).

Almost surely, 2^136344443617 is an apocalyptic number.

It is an amenable number.

136344443617 is a deficient number, since it is larger than the sum of its proper divisors (1273823).

136344443617 is a wasteful number, since it uses less digits than its factorization.

136344443617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1273822.

The product of its digits is 1741824, while the sum is 46.

The spelling of 136344443617 in words is "one hundred thirty-six billion, three hundred forty-four million, four hundred forty-three thousand, six hundred seventeen".