263881325423 has 2 divisors, whose sum is σ = 263881325424. Its totient is φ = 263881325422.

The previous prime is 263881325417. The next prime is 263881325503. The reversal of 263881325423 is 324523188362.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-263881325423 is a prime.

It is a super-2 number, since 2×263881325423² (a number of 24 digits) contains 22 as substring.

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 (263881385423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131940662711 + 131940662712.

It is an arithmetic number, because the mean of its divisors is an integer number (131940662712).

Almost surely, 2^263881325423 is an apocalyptic number.

263881325423 is a deficient number, since it is larger than the sum of its proper divisors (1).

263881325423 is an equidigital number, since it uses as much as digits as its factorization.

263881325423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1658880, while the sum is 47.

The spelling of 263881325423 in words is "two hundred sixty-three billion, eight hundred eighty-one million, three hundred twenty-five thousand, four hundred twenty-three".