27218502343 has 2 divisors, whose sum is σ = 27218502344. Its totient is φ = 27218502342.

The previous prime is 27218502331. The next prime is 27218502347. The reversal of 27218502343 is 34320581272.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 27218502343 - 2²¹ = 27216405191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27218502347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13609251171 + 13609251172.

It is an arithmetic number, because the mean of its divisors is an integer number (13609251172).

Almost surely, 2^27218502343 is an apocalyptic number.

27218502343 is a deficient number, since it is larger than the sum of its proper divisors (1).

27218502343 is an equidigital number, since it uses as much as digits as its factorization.

27218502343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 37.

The spelling of 27218502343 in words is "twenty-seven billion, two hundred eighteen million, five hundred two thousand, three hundred forty-three".