18497303047 has 2 divisors, whose sum is σ = 18497303048. Its totient is φ = 18497303046.

The previous prime is 18497303029. The next prime is 18497303089. The reversal of 18497303047 is 74030379481.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18497303047 - 2⁷ = 18497302919 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 18497302988 and 18497303006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18497301047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9248651523 + 9248651524.

It is an arithmetic number, because the mean of its divisors is an integer number (9248651524).

Almost surely, 2^18497303047 is an apocalyptic number.

18497303047 is a deficient number, since it is larger than the sum of its proper divisors (1).

18497303047 is an equidigital number, since it uses as much as digits as its factorization.

18497303047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 18497303047 in words is "eighteen billion, four hundred ninety-seven million, three hundred three thousand, forty-seven".