1868105743 has 18 divisors (see below), whose sum is σ = 2185635816. Its totient is φ = 1592048304.

The previous prime is 1868105737. The next prime is 1868105753. The reversal of 1868105743 is 3475018681.

It is a de Polignac number, because none of the positive numbers 2^k-1868105743 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1868105743.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1868105713) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2569246 + ... + 2569972.

It is an arithmetic number, because the mean of its divisors is an integer number (121424212).

Almost surely, 2^1868105743 is an apocalyptic number.

1868105743 is a deficient number, since it is larger than the sum of its proper divisors (317530073).

1868105743 is an frugal number, since it uses more digits than its factorization.

1868105743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199 (or 963 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 43.

The square root of 1868105743 is about 43221.5888532571. The cubic root of 1868105743 is about 1231.5928298926.

The spelling of 1868105743 in words is "one billion, eight hundred sixty-eight million, one hundred five thousand, seven hundred forty-three".