12697542233218 has 32 divisors (see below), whose sum is σ = 19609856084160. Its totient is φ = 6161782777920.

The previous prime is 12697542233197. The next prime is 12697542233231. The reversal of 12697542233218 is 81233224579621.

It is a super-2 number, since 2×12697542233218² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 342021205 + ... + 342058327.

It is an arithmetic number, because the mean of its divisors is an integer number (612808002630).

Almost surely, 2^{12697542233218} is an apocalyptic number.

12697542233218 is a deficient number, since it is larger than the sum of its proper divisors (6912313850942).

12697542233218 is a wasteful number, since it uses less digits than its factorization.

12697542233218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48562.

The product of its digits is 8709120, while the sum is 55.

The spelling of 12697542233218 in words is "twelve trillion, six hundred ninety-seven billion, five hundred forty-two million, two hundred thirty-three thousand, two hundred eighteen".