263040347441 has 2 divisors, whose sum is σ = 263040347442. Its totient is φ = 263040347440.

The previous prime is 263040347417. The next prime is 263040347459. The reversal of 263040347441 is 144743040362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 232778265841 + 30262081600 = 482471^2 + 173960^2 .

It is a cyclic number.

It is not a de Polignac number, because 263040347441 - 2⁶ = 263040347377 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263040347395 and 263040347404.

It is not a weakly prime, because it can be changed into another prime (263040347411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131520173720 + 131520173721.

It is an arithmetic number, because the mean of its divisors is an integer number (131520173721).

Almost surely, 2^263040347441 is an apocalyptic number.

It is an amenable number.

263040347441 is a deficient number, since it is larger than the sum of its proper divisors (1).

263040347441 is an equidigital number, since it uses as much as digits as its factorization.

263040347441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 38.

The spelling of 263040347441 in words is "two hundred sixty-three billion, forty million, three hundred forty-seven thousand, four hundred forty-one".