17864540227 has 2 divisors, whose sum is σ = 17864540228. Its totient is φ = 17864540226.

The previous prime is 17864540179. The next prime is 17864540231. The reversal of 17864540227 is 72204546871.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17864540227 - 2²³ = 17856151619 is a prime.

It is not a weakly prime, because it can be changed into another prime (17864540237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8932270113 + 8932270114.

It is an arithmetic number, because the mean of its divisors is an integer number (8932270114).

Almost surely, 2^17864540227 is an apocalyptic number.

17864540227 is a deficient number, since it is larger than the sum of its proper divisors (1).

17864540227 is an equidigital number, since it uses as much as digits as its factorization.

17864540227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 752640, while the sum is 46.

The spelling of 17864540227 in words is "seventeen billion, eight hundred sixty-four million, five hundred forty thousand, two hundred twenty-seven".