12618284554228 has 24 divisors (see below), whose sum is σ = 22621723072200. Its totient is φ = 6154950612480.

The previous prime is 12618284554207. The next prime is 12618284554241. The reversal of 12618284554228 is 82245548281621.

It can be written as a sum of positive squares in 4 ways, for example, as 808078740624 + 11810205813604 = 898932^2 + 3436598^2 .

It is a super-2 number, since 2×12618284554228² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1343200 + ... + 5200072.

It is an arithmetic number, because the mean of its divisors is an integer number (942571794675).

Almost surely, 2^{12618284554228} is an apocalyptic number.

It is an amenable number.

12618284554228 is a deficient number, since it is larger than the sum of its proper divisors (10003438517972).

12618284554228 is a wasteful number, since it uses less digits than its factorization.

12618284554228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876867 (or 3876865 counting only the distinct ones).

The product of its digits is 19660800, while the sum is 58.

The spelling of 12618284554228 in words is "twelve trillion, six hundred eighteen billion, two hundred eighty-four million, five hundred fifty-four thousand, two hundred twenty-eight".