18984482971 has 2 divisors, whose sum is σ = 18984482972. Its totient is φ = 18984482970.

The previous prime is 18984482899. The next prime is 18984482999. The reversal of 18984482971 is 17928448981.

It is a strong prime.

It is an emirp because it is prime and its reverse (17928448981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18984482971 - 2¹⁹ = 18983958683 is a prime.

It is not a weakly prime, because it can be changed into another prime (18984482071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9492241485 + 9492241486.

It is an arithmetic number, because the mean of its divisors is an integer number (9492241486).

Almost surely, 2^18984482971 is an apocalyptic number.

18984482971 is a deficient number, since it is larger than the sum of its proper divisors (1).

18984482971 is an equidigital number, since it uses as much as digits as its factorization.

18984482971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9289728, while the sum is 61.

The spelling of 18984482971 in words is "eighteen billion, nine hundred eighty-four million, four hundred eighty-two thousand, nine hundred seventy-one".