263220043414693 has 2 divisors, whose sum is σ = 263220043414694. Its totient is φ = 263220043414692.

The previous prime is 263220043414661. The next prime is 263220043414729. The reversal of 263220043414693 is 396414340022362.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143636917159044 + 119583126255649 = 11984862^2 + 10935407^2 .

It is a cyclic number.

It is not a de Polignac number, because 263220043414693 - 2⁵ = 263220043414661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263220043414793) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131610021707346 + 131610021707347.

It is an arithmetic number, because the mean of its divisors is an integer number (131610021707347).

Almost surely, 2^{263220043414693} is an apocalyptic number.

It is an amenable number.

263220043414693 is a deficient number, since it is larger than the sum of its proper divisors (1).

263220043414693 is an equidigital number, since it uses as much as digits as its factorization.

263220043414693 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4478976, while the sum is 49.

The spelling of 263220043414693 in words is "two hundred sixty-three trillion, two hundred twenty billion, forty-three million, four hundred fourteen thousand, six hundred ninety-three".