81014677067 has 2 divisors, whose sum is σ = 81014677068. Its totient is φ = 81014677066.

The previous prime is 81014677057. The next prime is 81014677069. The reversal of 81014677067 is 76077641018.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 81014677067 - 2⁸ = 81014676811 is a prime.

Together with 81014677069, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (81014677069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40507338533 + 40507338534.

It is an arithmetic number, because the mean of its divisors is an integer number (40507338534).

Almost surely, 2^81014677067 is an apocalyptic number.

81014677067 is a deficient number, since it is larger than the sum of its proper divisors (1).

81014677067 is an equidigital number, since it uses as much as digits as its factorization.

81014677067 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 395136, while the sum is 47.

The spelling of 81014677067 in words is "eighty-one billion, fourteen million, six hundred seventy-seven thousand, sixty-seven".