263104575642257 has 8 divisors (see below), whose sum is σ = 268121613825576. Its totient is φ = 258089493048192.

The previous prime is 263104575642253. The next prime is 263104575642301. The reversal of 263104575642257 is 752246575401362.

It can be written as a sum of positive squares in 4 ways, for example, as 131240142208081 + 131864433434176 = 11456009^2 + 11483224^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 263104575642257 - 2² = 263104575642253 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 263104575642196 and 263104575642205.

It is not an unprimeable number, because it can be changed into a prime (263104575642253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 488625668 + ... + 489163829.

It is an arithmetic number, because the mean of its divisors is an integer number (33515201728197).

Almost surely, 2^{263104575642257} is an apocalyptic number.

It is an amenable number.

263104575642257 is a deficient number, since it is larger than the sum of its proper divisors (5017038183319).

263104575642257 is an equidigital number, since it uses as much as digits as its factorization.

263104575642257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977794627.

The product of its (nonzero) digits is 84672000, while the sum is 59.

The spelling of 263104575642257 in words is "two hundred sixty-three trillion, one hundred four billion, five hundred seventy-five million, six hundred forty-two thousand, two hundred fifty-seven".