1780791144463 has 2 divisors, whose sum is σ = 1780791144464. Its totient is φ = 1780791144462.

The previous prime is 1780791144421. The next prime is 1780791144487. The reversal of 1780791144463 is 3644411970871.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1780791144463 - 2²¹ = 1780789047311 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1780791154463) 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, 890395572231 + 890395572232.

It is an arithmetic number, because the mean of its divisors is an integer number (890395572232).

Almost surely, 2^{1780791144463} is an apocalyptic number.

1780791144463 is a deficient number, since it is larger than the sum of its proper divisors (1).

1780791144463 is an equidigital number, since it uses as much as digits as its factorization.

1780791144463 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 1780791144463 in words is "one trillion, seven hundred eighty billion, seven hundred ninety-one million, one hundred forty-four thousand, four hundred sixty-three".