67856612227 has 2 divisors, whose sum is σ = 67856612228. Its totient is φ = 67856612226.

The previous prime is 67856612183. The next prime is 67856612233. The reversal of 67856612227 is 72221665876.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 67856612227 - 2⁷ = 67856612099 is a prime.

It is not a weakly prime, because it can be changed into another prime (67856612237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33928306113 + 33928306114.

It is an arithmetic number, because the mean of its divisors is an integer number (33928306114).

Almost surely, 2^67856612227 is an apocalyptic number.

67856612227 is a deficient number, since it is larger than the sum of its proper divisors (1).

67856612227 is an equidigital number, since it uses as much as digits as its factorization.

67856612227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3386880, while the sum is 52.

The spelling of 67856612227 in words is "sixty-seven billion, eight hundred fifty-six million, six hundred twelve thousand, two hundred twenty-seven".