1868191712383 has 2 divisors, whose sum is σ = 1868191712384. Its totient is φ = 1868191712382.

The previous prime is 1868191712369. The next prime is 1868191712479. The reversal of 1868191712383 is 3832171918681.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1868191712383 - 2⁹ = 1868191711871 is a prime.

It is a super-3 number, since 3×1868191712383³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1868191742383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 934095856191 + 934095856192.

It is an arithmetic number, because the mean of its divisors is an integer number (934095856192).

Almost surely, 2^{1868191712383} is an apocalyptic number.

1868191712383 is a deficient number, since it is larger than the sum of its proper divisors (1).

1868191712383 is an equidigital number, since it uses as much as digits as its factorization.

1868191712383 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3483648, while the sum is 58.

The spelling of 1868191712383 in words is "one trillion, eight hundred sixty-eight billion, one hundred ninety-one million, seven hundred twelve thousand, three hundred eighty-three".