1285842875218 has 32 divisors (see below), whose sum is σ = 2206734710400. Its totient is φ = 556224197760.

The previous prime is 1285842875203. The next prime is 1285842875267. The reversal of 1285842875218 is 8125782485821.

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 15 ways as a sum of consecutive naturals, for example, 6350043 + ... + 6549406.

It is an arithmetic number, because the mean of its divisors is an integer number (68960459700).

Almost surely, 2^{1285842875218} is an apocalyptic number.

1285842875218 is a deficient number, since it is larger than the sum of its proper divisors (920891835182).

1285842875218 is a wasteful number, since it uses less digits than its factorization.

1285842875218 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12899682.

The product of its digits is 22937600, while the sum is 61.

The spelling of 1285842875218 in words is "one trillion, two hundred eighty-five billion, eight hundred forty-two million, eight hundred seventy-five thousand, two hundred eighteen".