18080202247 has 2 divisors, whose sum is σ = 18080202248. Its totient is φ = 18080202246.

The previous prime is 18080202197. The next prime is 18080202281. The reversal of 18080202247 is 74220208081.

It is an a-pointer prime, because the next prime (18080202281) can be obtained adding 18080202247 to its sum of digits (34).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18080202247 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18080202347) 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, 9040101123 + 9040101124.

It is an arithmetic number, because the mean of its divisors is an integer number (9040101124).

Almost surely, 2^18080202247 is an apocalyptic number.

18080202247 is a deficient number, since it is larger than the sum of its proper divisors (1).

18080202247 is an equidigital number, since it uses as much as digits as its factorization.

18080202247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14336, while the sum is 34.

The spelling of 18080202247 in words is "eighteen billion, eighty million, two hundred two thousand, two hundred forty-seven".