263453063453 has 4 divisors (see below), whose sum is σ = 263461622268. Its totient is φ = 263444504640.

The previous prime is 263453063443. The next prime is 263453063539. The reversal of 263453063453 is 354360354362.

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 210091139449 + 53361924004 = 458357^2 + 231002^2 .

It is a cyclic number.

It is not a de Polignac number, because 263453063453 - 2⁶ = 263453063389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263453063443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4233068 + ... + 4294853.

It is an arithmetic number, because the mean of its divisors is an integer number (65865405567).

Almost surely, 2^263453063453 is an apocalyptic number.

It is an amenable number.

263453063453 is a deficient number, since it is larger than the sum of its proper divisors (8558815).

263453063453 is an equidigital number, since it uses as much as digits as its factorization.

263453063453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8558814.

The product of its (nonzero) digits is 2332800, while the sum is 44.

The spelling of 263453063453 in words is "two hundred sixty-three billion, four hundred fifty-three million, sixty-three thousand, four hundred fifty-three".