136804336078 has 4 divisors (see below), whose sum is σ = 205206504120. Its totient is φ = 68402168038.

The previous prime is 136804336037. The next prime is 136804336153. The reversal of 136804336078 is 870633408631.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 870633408631 = 7 ⋅124376201233.

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 congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34201084018 + ... + 34201084021.

It is an arithmetic number, because the mean of its divisors is an integer number (51301626030).

Almost surely, 2^136804336078 is an apocalyptic number.

136804336078 is a deficient number, since it is larger than the sum of its proper divisors (68402168042).

136804336078 is an equidigital number, since it uses as much as digits as its factorization.

136804336078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68402168041.

The product of its (nonzero) digits is 1741824, while the sum is 49.

The spelling of 136804336078 in words is "one hundred thirty-six billion, eight hundred four million, three hundred thirty-six thousand, seventy-eight".