1868851718886 has 16 divisors (see below), whose sum is σ = 3741568706304. Its totient is φ = 622306361544.

The previous prime is 1868851718869. The next prime is 1868851718887. The reversal of 1868851718886 is 6888171588681.

It is a congruent number.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 161046570 + ... + 161058173.

It is an arithmetic number, because the mean of its divisors is an integer number (233848044144).

Almost surely, 2^{1868851718886} is an apocalyptic number.

1868851718886 is an abundant number, since it is smaller than the sum of its proper divisors (1872716987418).

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

1868851718886 is a wasteful number, since it uses less digits than its factorization.

1868851718886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322105715.

The product of its digits is 330301440, while the sum is 75.

The spelling of 1868851718886 in words is "one trillion, eight hundred sixty-eight billion, eight hundred fifty-one million, seven hundred eighteen thousand, eight hundred eighty-six".