218539038703 has 2 divisors, whose sum is σ = 218539038704. Its totient is φ = 218539038702.

The previous prime is 218539038691. The next prime is 218539038743. The reversal of 218539038703 is 307830935812.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 218539038703 - 2⁹ = 218539038191 is a prime.

It is a super-2 number, since 2×218539038703² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (218539038743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 109269519351 + 109269519352.

It is an arithmetic number, because the mean of its divisors is an integer number (109269519352).

Almost surely, 2^218539038703 is an apocalyptic number.

218539038703 is a deficient number, since it is larger than the sum of its proper divisors (1).

218539038703 is an equidigital number, since it uses as much as digits as its factorization.

218539038703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1088640, while the sum is 49.

The spelling of 218539038703 in words is "two hundred eighteen billion, five hundred thirty-nine million, thirty-eight thousand, seven hundred three".