1218486374812 has 48 divisors (see below), whose sum is σ = 2461393392640. Its totient is φ = 516978588672.

The previous prime is 1218486374779. The next prime is 1218486374837. The reversal of 1218486374812 is 2184736848121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9508348 + ... + 9635644.

Almost surely, 2^{1218486374812} is an apocalyptic number.

It is an amenable number.

1218486374812 is an abundant number, since it is smaller than the sum of its proper divisors (1242907017828).

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

1218486374812 is a wasteful number, since it uses less digits than its factorization.

1218486374812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130730 (or 130728 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 55.

The spelling of 1218486374812 in words is "one trillion, two hundred eighteen billion, four hundred eighty-six million, three hundred seventy-four thousand, eight hundred twelve".