1018886906804 has 12 divisors (see below), whose sum is σ = 1920209939844. Its totient is φ = 470255495424.

The previous prime is 1018886906777. The next prime is 1018886906819. The reversal of 1018886906804 is 4086096888101.

It can be written as a sum of positive squares in 2 ways, for example, as 378163502500 + 640723404304 = 614950^2 + 800452^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9796989437 + ... + 9796989540.

It is an arithmetic number, because the mean of its divisors is an integer number (160017494987).

Almost surely, 2^{1018886906804} is an apocalyptic number.

It is an amenable number.

1018886906804 is a deficient number, since it is larger than the sum of its proper divisors (901323033040).

1018886906804 is a wasteful number, since it uses less digits than its factorization.

1018886906804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19593978994 (or 19593978992 counting only the distinct ones).

The product of its (nonzero) digits is 5308416, while the sum is 59.

The spelling of 1018886906804 in words is "one trillion, eighteen billion, eight hundred eighty-six million, nine hundred six thousand, eight hundred four".