1318818812 has 12 divisors (see below), whose sum is σ = 2330784456. Its totient is φ = 652880400.

The previous prime is 1318818793. The next prime is 1318818859. The reversal of 1318818812 is 2188188131.

It is a self number, because there is not a number n which added to its sum of digits gives 1318818812.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 1631798 + ... + 1632605.

It is an arithmetic number, because the mean of its divisors is an integer number (194232038).

Almost surely, 2^1318818812 is an apocalyptic number.

It is an amenable number.

1318818812 is a deficient number, since it is larger than the sum of its proper divisors (1011965644).

1318818812 is a wasteful number, since it uses less digits than its factorization.

1318818812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3264508 (or 3264506 counting only the distinct ones).

The product of its digits is 24576, while the sum is 41.

The square root of 1318818812 is about 36315.5450461645. The cubic root of 1318818812 is about 1096.6340114423.

It can be divided in two parts, 1 and 318818812, that added together give a palindrome (318818813).

The spelling of 1318818812 in words is "one billion, three hundred eighteen million, eight hundred eighteen thousand, eight hundred twelve".