1868851718884 has 48 divisors (see below), whose sum is σ = 3495073639680. Its totient is φ = 871317803520.

The previous prime is 1868851718869. The next prime is 1868851718887. The reversal of 1868851718884 is 4888171588681.

It is a Smith number, since the sum of its digits (73) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (1868851718887) by changing a digit.

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, 3015334 + ... + 3581890.

It is an arithmetic number, because the mean of its divisors is an integer number (72814034160).

Almost surely, 2^{1868851718884} is an apocalyptic number.

It is an amenable number.

1868851718884 is a deficient number, since it is larger than the sum of its proper divisors (1626221920796).

1868851718884 is a wasteful number, since it uses less digits than its factorization.

1868851718884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 567028 (or 567026 counting only the distinct ones).

The product of its digits is 220200960, while the sum is 73.

The spelling of 1868851718884 in words is "one trillion, eight hundred sixty-eight billion, eight hundred fifty-one million, seven hundred eighteen thousand, eight hundred eighty-four".