263473253760667 has 2 divisors, whose sum is σ = 263473253760668. Its totient is φ = 263473253760666.

The previous prime is 263473253760649. The next prime is 263473253760701. The reversal of 263473253760667 is 766067352374362.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 263473253760667 - 2²⁷ = 263473119542939 is a prime.

It is not a weakly prime, because it can be changed into another prime (263473253761667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131736626880333 + 131736626880334.

It is an arithmetic number, because the mean of its divisors is an integer number (131736626880334).

Almost surely, 2^{263473253760667} is an apocalyptic number.

263473253760667 is a deficient number, since it is larger than the sum of its proper divisors (1).

263473253760667 is an equidigital number, since it uses as much as digits as its factorization.

263473253760667 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960180480, while the sum is 67.

The spelling of 263473253760667 in words is "two hundred sixty-three trillion, four hundred seventy-three billion, two hundred fifty-three million, seven hundred sixty thousand, six hundred sixty-seven".