18841752387923 has 2 divisors, whose sum is σ = 18841752387924. Its totient is φ = 18841752387922.

The previous prime is 18841752387917. The next prime is 18841752387943. The reversal of 18841752387923 is 32978325714881.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18841752387923 - 2²⁰ = 18841751339347 is a prime.

It is not a weakly prime, because it can be changed into another prime (18841752387943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9420876193961 + 9420876193962.

It is an arithmetic number, because the mean of its divisors is an integer number (9420876193962).

Almost surely, 2^{18841752387923} is an apocalyptic number.

18841752387923 is a deficient number, since it is larger than the sum of its proper divisors (1).

18841752387923 is an equidigital number, since it uses as much as digits as its factorization.

18841752387923 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 162570240, while the sum is 68.

The spelling of 18841752387923 in words is "eighteen trillion, eight hundred forty-one billion, seven hundred fifty-two million, three hundred eighty-seven thousand, nine hundred twenty-three".