18214417298503 has 2 divisors, whose sum is σ = 18214417298504. Its totient is φ = 18214417298502.

The previous prime is 18214417298461. The next prime is 18214417298527. The reversal of 18214417298503 is 30589271441281.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18214417298503 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18214417298563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9107208649251 + 9107208649252.

It is an arithmetic number, because the mean of its divisors is an integer number (9107208649252).

Almost surely, 2^{18214417298503} is an apocalyptic number.

18214417298503 is a deficient number, since it is larger than the sum of its proper divisors (1).

18214417298503 is an equidigital number, since it uses as much as digits as its factorization.

18214417298503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3870720, while the sum is 55.

The spelling of 18214417298503 in words is "eighteen trillion, two hundred fourteen billion, four hundred seventeen million, two hundred ninety-eight thousand, five hundred three".