263843123471 has 2 divisors, whose sum is σ = 263843123472. Its totient is φ = 263843123470.

The previous prime is 263843123449. The next prime is 263843123483. The reversal of 263843123471 is 174321348362.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263843123471 is a prime.

It is a super-3 number, since 3×263843123471³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263843123441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131921561735 + 131921561736.

It is an arithmetic number, because the mean of its divisors is an integer number (131921561736).

Almost surely, 2^263843123471 is an apocalyptic number.

263843123471 is a deficient number, since it is larger than the sum of its proper divisors (1).

263843123471 is an equidigital number, since it uses as much as digits as its factorization.

263843123471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 580608, while the sum is 44.

The spelling of 263843123471 in words is "two hundred sixty-three billion, eight hundred forty-three million, one hundred twenty-three thousand, four hundred seventy-one".