1868087870843 has 4 divisors (see below), whose sum is σ = 1868090701680. Its totient is φ = 1868085040008.

The previous prime is 1868087870711. The next prime is 1868087870851. The reversal of 1868087870843 is 3480787808681.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1868087870843 - 2¹² = 1868087866747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1868087879843) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 155921 + ... + 1939197.

It is an arithmetic number, because the mean of its divisors is an integer number (467022675420).

Almost surely, 2^{1868087870843} is an apocalyptic number.

1868087870843 is a deficient number, since it is larger than the sum of its proper divisors (2830837).

1868087870843 is a wasteful number, since it uses less digits than its factorization.

1868087870843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2830836.

The product of its (nonzero) digits is 115605504, while the sum is 68.

The spelling of 1868087870843 in words is "one trillion, eight hundred sixty-eight billion, eighty-seven million, eight hundred seventy thousand, eight hundred forty-three".