18782120527 has 2 divisors, whose sum is σ = 18782120528. Its totient is φ = 18782120526.

The previous prime is 18782120509. The next prime is 18782120531. The reversal of 18782120527 is 72502128781.

It is a strong prime.

It is an emirp because it is prime and its reverse (72502128781) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18782120527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18782120507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9391060263 + 9391060264.

It is an arithmetic number, because the mean of its divisors is an integer number (9391060264).

Almost surely, 2^18782120527 is an apocalyptic number.

18782120527 is a deficient number, since it is larger than the sum of its proper divisors (1).

18782120527 is an equidigital number, since it uses as much as digits as its factorization.

18782120527 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 125440, while the sum is 43.

The spelling of 18782120527 in words is "eighteen billion, seven hundred eighty-two million, one hundred twenty thousand, five hundred twenty-seven".