136474660423 has 4 divisors (see below), whose sum is σ = 136518391408. Its totient is φ = 136430929440.

The previous prime is 136474660393. The next prime is 136474660453. The reversal of 136474660423 is 324066474631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324066474631 = 83 ⋅3904415357.

It is an interprime number because it is at equal distance from previous prime (136474660393) and next prime (136474660453).

It is a cyclic number.

It is not a de Polignac number, because 136474660423 - 2³³ = 127884725831 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 (136474660453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21860811 + ... + 21867052.

It is an arithmetic number, because the mean of its divisors is an integer number (34129597852).

Almost surely, 2^136474660423 is an apocalyptic number.

136474660423 is a deficient number, since it is larger than the sum of its proper divisors (43730985).

136474660423 is an equidigital number, since it uses as much as digits as its factorization.

136474660423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43730984.

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

The spelling of 136474660423 in words is "one hundred thirty-six billion, four hundred seventy-four million, six hundred sixty thousand, four hundred twenty-three".