816361067827 has 2 divisors, whose sum is σ = 816361067828. Its totient is φ = 816361067826.

The previous prime is 816361067803. The next prime is 816361067849. The reversal of 816361067827 is 728760163618.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 816361067827 - 2¹⁵ = 816361035059 is a prime.

It is not a weakly prime, because it can be changed into another prime (816361067527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 408180533913 + 408180533914.

It is an arithmetic number, because the mean of its divisors is an integer number (408180533914).

Almost surely, 2^816361067827 is an apocalyptic number.

816361067827 is a deficient number, since it is larger than the sum of its proper divisors (1).

816361067827 is an equidigital number, since it uses as much as digits as its factorization.

816361067827 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4064256, while the sum is 55.

The spelling of 816361067827 in words is "eight hundred sixteen billion, three hundred sixty-one million, sixty-seven thousand, eight hundred twenty-seven".