263455143504731 has 2 divisors, whose sum is σ = 263455143504732. Its totient is φ = 263455143504730.

The previous prime is 263455143504691. The next prime is 263455143504739. The reversal of 263455143504731 is 137405341554362.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 263455143504731 - 2³⁸ = 263180265597787 is a prime.

It is a super-2 number, since 2×263455143504731² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (263455143504739) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131727571752365 + 131727571752366.

It is an arithmetic number, because the mean of its divisors is an integer number (131727571752366).

Almost surely, 2^{263455143504731} is an apocalyptic number.

263455143504731 is a deficient number, since it is larger than the sum of its proper divisors (1).

263455143504731 is an equidigital number, since it uses as much as digits as its factorization.

263455143504731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144000, while the sum is 53.

The spelling of 263455143504731 in words is "two hundred sixty-three trillion, four hundred fifty-five billion, one hundred forty-three million, five hundred four thousand, seven hundred thirty-one".