263839094663 has 2 divisors, whose sum is σ = 263839094664. Its totient is φ = 263839094662.

The previous prime is 263839094653. The next prime is 263839094669. The reversal of 263839094663 is 366490938362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263839094663 - 2²⁸ = 263570659207 is a prime.

It is a super-2 number, since 2×263839094663² (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 (263839094669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131919547331 + 131919547332.

It is an arithmetic number, because the mean of its divisors is an integer number (131919547332).

Almost surely, 2^263839094663 is an apocalyptic number.

263839094663 is a deficient number, since it is larger than the sum of its proper divisors (1).

263839094663 is an equidigital number, since it uses as much as digits as its factorization.

263839094663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30233088, while the sum is 59.

The spelling of 263839094663 in words is "two hundred sixty-three billion, eight hundred thirty-nine million, ninety-four thousand, six hundred sixty-three".