263994884863 has 2 divisors, whose sum is σ = 263994884864. Its totient is φ = 263994884862.

The previous prime is 263994884843. The next prime is 263994884873. The reversal of 263994884863 is 368488499362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263994884863 - 2¹⁷ = 263994753791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 263994884792 and 263994884801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (263994884843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131997442431 + 131997442432.

It is an arithmetic number, because the mean of its divisors is an integer number (131997442432).

Almost surely, 2^263994884863 is an apocalyptic number.

263994884863 is a deficient number, since it is larger than the sum of its proper divisors (1).

263994884863 is an equidigital number, since it uses as much as digits as its factorization.

263994884863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 429981696, while the sum is 70.

The spelling of 263994884863 in words is "two hundred sixty-three billion, nine hundred ninety-four million, eight hundred eighty-four thousand, eight hundred sixty-three".