12718821067 has 2 divisors, whose sum is σ = 12718821068. Its totient is φ = 12718821066.

The previous prime is 12718821023. The next prime is 12718821113. The reversal of 12718821067 is 76012881721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12718821067 - 2¹¹ = 12718819019 is a prime.

It is not a weakly prime, because it can be changed into another prime (12778821067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6359410533 + 6359410534.

It is an arithmetic number, because the mean of its divisors is an integer number (6359410534).

Almost surely, 2^12718821067 is an apocalyptic number.

12718821067 is a deficient number, since it is larger than the sum of its proper divisors (1).

12718821067 is an equidigital number, since it uses as much as digits as its factorization.

12718821067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 75264, while the sum is 43.

The spelling of 12718821067 in words is "twelve billion, seven hundred eighteen million, eight hundred twenty-one thousand, sixty-seven".