12551184850218 has 16 divisors (see below), whose sum is σ = 28688422514880. Its totient is φ = 3586052814336.

The previous prime is 12551184850207. The next prime is 12551184850219. The reversal of 12551184850218 is 81205848115521.

12551184850218 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×12551184850218³ (a number of 40 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12551184850219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149418867223 + ... + 149418867306.

It is an arithmetic number, because the mean of its divisors is an integer number (1793026407180).

Almost surely, 2^{12551184850218} is an apocalyptic number.

12551184850218 is an abundant number, since it is smaller than the sum of its proper divisors (16137237664662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12551184850218 is a wasteful number, since it uses less digits than its factorization.

12551184850218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298837734541.

The product of its (nonzero) digits is 1024000, while the sum is 51.

The spelling of 12551184850218 in words is "twelve trillion, five hundred fifty-one billion, one hundred eighty-four million, eight hundred fifty thousand, two hundred eighteen".