136523783737 has 8 divisors (see below), whose sum is σ = 148938753312. Its totient is φ = 124109433600.

The previous prime is 136523783717. The next prime is 136523783761. The reversal of 136523783737 is 737387325631.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 136523783737 - 2³¹ = 134376300089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (136523783717) 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 in 7 ways as a sum of consecutive naturals, for example, 389062 + ... + 651472.

It is an arithmetic number, because the mean of its divisors is an integer number (18617344164).

Almost surely, 2^136523783737 is an apocalyptic number.

It is an amenable number.

136523783737 is a deficient number, since it is larger than the sum of its proper divisors (12414969575).

136523783737 is a wasteful number, since it uses less digits than its factorization.

136523783737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 309719.

The product of its digits is 13335840, while the sum is 55.

The spelling of 136523783737 in words is "one hundred thirty-six billion, five hundred twenty-three million, seven hundred eighty-three thousand, seven hundred thirty-seven".