18612480287 has 2 divisors, whose sum is σ = 18612480288. Its totient is φ = 18612480286.

The previous prime is 18612480241. The next prime is 18612480317. The reversal of 18612480287 is 78208421681.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18612480287 - 2¹² = 18612476191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18612480217) 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, 9306240143 + 9306240144.

It is an arithmetic number, because the mean of its divisors is an integer number (9306240144).

Almost surely, 2^18612480287 is an apocalyptic number.

18612480287 is a deficient number, since it is larger than the sum of its proper divisors (1).

18612480287 is an equidigital number, since it uses as much as digits as its factorization.

18612480287 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 344064, while the sum is 47.

The spelling of 18612480287 in words is "eighteen billion, six hundred twelve million, four hundred eighty thousand, two hundred eighty-seven".