263746336423 has 2 divisors, whose sum is σ = 263746336424. Its totient is φ = 263746336422.

The previous prime is 263746336417. The next prime is 263746336471. The reversal of 263746336423 is 324633647362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263746336423 - 2⁹ = 263746335911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263746337423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131873168211 + 131873168212.

It is an arithmetic number, because the mean of its divisors is an integer number (131873168212).

Almost surely, 2^263746336423 is an apocalyptic number.

263746336423 is a deficient number, since it is larger than the sum of its proper divisors (1).

263746336423 is an equidigital number, since it uses as much as digits as its factorization.

263746336423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 49.

The spelling of 263746336423 in words is "two hundred sixty-three billion, seven hundred forty-six million, three hundred thirty-six thousand, four hundred twenty-three".