18484073983 has 2 divisors, whose sum is σ = 18484073984. Its totient is φ = 18484073982.

The previous prime is 18484073963. The next prime is 18484074013. The reversal of 18484073983 is 38937048481.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18484073983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18484073963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9242036991 + 9242036992.

It is an arithmetic number, because the mean of its divisors is an integer number (9242036992).

Almost surely, 2^18484073983 is an apocalyptic number.

18484073983 is a deficient number, since it is larger than the sum of its proper divisors (1).

18484073983 is an equidigital number, since it uses as much as digits as its factorization.

18484073983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 18484073983 in words is "eighteen billion, four hundred eighty-four million, seventy-three thousand, nine hundred eighty-three".