136397243518 has 32 divisors (see below), whose sum is σ = 208871355168. Its totient is φ = 66786508800.

The previous prime is 136397243513. The next prime is 136397243557. The reversal of 136397243518 is 815342793631.

It is a Smith number, since the sum of its digits (52) 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 not an unprimeable number, because it can be changed into a prime (136397243513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18627298 + ... + 18634618.

It is an arithmetic number, because the mean of its divisors is an integer number (6527229849).

Almost surely, 2^136397243518 is an apocalyptic number.

136397243518 is a deficient number, since it is larger than the sum of its proper divisors (72474111650).

136397243518 is a wasteful number, since it uses less digits than its factorization.

136397243518 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8188.

The product of its digits is 3265920, while the sum is 52.

The spelling of 136397243518 in words is "one hundred thirty-six billion, three hundred ninety-seven million, two hundred forty-three thousand, five hundred eighteen".