263134700897 has 4 divisors (see below), whose sum is σ = 266091270660. Its totient is φ = 260178131136.

The previous prime is 263134700861. The next prime is 263134700903. The reversal of 263134700897 is 798007431362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15010170256 + 248124530641 = 122516^2 + 498121^2 .

It is a cyclic number.

It is not a de Polignac number, because 263134700897 - 2³⁴ = 245954831713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (263134706897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1478284748 + ... + 1478284925.

It is an arithmetic number, because the mean of its divisors is an integer number (66522817665).

Almost surely, 2^263134700897 is an apocalyptic number.

It is an amenable number.

263134700897 is a deficient number, since it is larger than the sum of its proper divisors (2956569763).

263134700897 is an equidigital number, since it uses as much as digits as its factorization.

263134700897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2956569762.

The product of its (nonzero) digits is 1524096, while the sum is 50.

The spelling of 263134700897 in words is "two hundred sixty-three billion, one hundred thirty-four million, seven hundred thousand, eight hundred ninety-seven".