18773880383 has 2 divisors, whose sum is σ = 18773880384. Its totient is φ = 18773880382.

The previous prime is 18773880379. The next prime is 18773880397. The reversal of 18773880383 is 38308837781.

It is a weak prime.

It is an emirp because it is prime and its reverse (38308837781) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18773880383 - 2² = 18773880379 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18773880313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9386940191 + 9386940192.

It is an arithmetic number, because the mean of its divisors is an integer number (9386940192).

Almost surely, 2^18773880383 is an apocalyptic number.

18773880383 is a deficient number, since it is larger than the sum of its proper divisors (1).

18773880383 is an equidigital number, since it uses as much as digits as its factorization.

18773880383 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5419008, while the sum is 56.

The spelling of 18773880383 in words is "eighteen billion, seven hundred seventy-three million, eight hundred eighty thousand, three hundred eighty-three".