136497377218 has 8 divisors (see below), whose sum is σ = 204823074960. Its totient is φ = 68223018900.

The previous prime is 136497377207. The next prime is 136497377249. The reversal of 136497377218 is 812773794631.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12828208 + ... + 12838843.

It is an arithmetic number, because the mean of its divisors is an integer number (25602884370).

Almost surely, 2^136497377218 is an apocalyptic number.

136497377218 is a deficient number, since it is larger than the sum of its proper divisors (68325697742).

136497377218 is a wasteful number, since it uses less digits than its factorization.

136497377218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25669712.

The product of its digits is 10668672, while the sum is 58.

The spelling of 136497377218 in words is "one hundred thirty-six billion, four hundred ninety-seven million, three hundred seventy-seven thousand, two hundred eighteen".