263340254479 has 2 divisors, whose sum is σ = 263340254480. Its totient is φ = 263340254478.

The previous prime is 263340254423. The next prime is 263340254539. The reversal of 263340254479 is 974452043362.

263340254479 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263340254479 - 2¹⁹ = 263339730191 is a prime.

It is a super-2 number, since 2×263340254479² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263340251479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131670127239 + 131670127240.

It is an arithmetic number, because the mean of its divisors is an integer number (131670127240).

Almost surely, 2^263340254479 is an apocalyptic number.

263340254479 is a deficient number, since it is larger than the sum of its proper divisors (1).

263340254479 is an equidigital number, since it uses as much as digits as its factorization.

263340254479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4354560, while the sum is 49.

The spelling of 263340254479 in words is "two hundred sixty-three billion, three hundred forty million, two hundred fifty-four thousand, four hundred seventy-nine".