263741778271 has 2 divisors, whose sum is σ = 263741778272. Its totient is φ = 263741778270.

The previous prime is 263741778247. The next prime is 263741778323. The reversal of 263741778271 is 172877147362.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263741778271 - 2¹⁵ = 263741745503 is a prime.

It is a zygodrome in base 4.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263741776271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131870889135 + 131870889136.

It is an arithmetic number, because the mean of its divisors is an integer number (131870889136).

Almost surely, 2^263741778271 is an apocalyptic number.

263741778271 is a deficient number, since it is larger than the sum of its proper divisors (1).

263741778271 is an equidigital number, since it uses as much as digits as its factorization.

263741778271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5531904, while the sum is 55.

The spelling of 263741778271 in words is "two hundred sixty-three billion, seven hundred forty-one million, seven hundred seventy-eight thousand, two hundred seventy-one".