1771840008863 has 2 divisors, whose sum is σ = 1771840008864. Its totient is φ = 1771840008862.

The previous prime is 1771840008761. The next prime is 1771840008901. The reversal of 1771840008863 is 3688000481771.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1771840008863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1771840008163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 885920004431 + 885920004432.

It is an arithmetic number, because the mean of its divisors is an integer number (885920004432).

Almost surely, 2^{1771840008863} is an apocalyptic number.

1771840008863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1771840008863 is an equidigital number, since it uses as much as digits as its factorization.

1771840008863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1806336, while the sum is 53.

The spelling of 1771840008863 in words is "one trillion, seven hundred seventy-one billion, eight hundred forty million, eight thousand, eight hundred sixty-three".