136538076406 has 4 divisors (see below), whose sum is σ = 204807114612. Its totient is φ = 68269038202.

The previous prime is 136538076377. The next prime is 136538076407. The reversal of 136538076406 is 604670835631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 604670835631 = 109 ⋅5547438859.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 136538076406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136538076407) 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 as a sum of consecutive naturals, namely, 34134519100 + ... + 34134519103.

It is an arithmetic number, because the mean of its divisors is an integer number (51201778653).

Almost surely, 2^136538076406 is an apocalyptic number.

136538076406 is a deficient number, since it is larger than the sum of its proper divisors (68269038206).

136538076406 is an equidigital number, since it uses as much as digits as its factorization.

136538076406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68269038205.

The product of its (nonzero) digits is 2177280, while the sum is 49.

The spelling of 136538076406 in words is "one hundred thirty-six billion, five hundred thirty-eight million, seventy-six thousand, four hundred six".