263044226313 has 48 divisors (see below), whose sum is σ = 430988493312. Its totient is φ = 153151776000.

The previous prime is 263044226309. The next prime is 263044226321. The reversal of 263044226313 is 313622440362.

263044226313 is a `hidden beast` number, since 2 + 630 + 4 + 4 + 2 + 2 + 6 + 3 + 13 = 666.

It is not a de Polignac number, because 263044226313 - 2² = 263044226309 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (263044226323) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 107643 + ... + 733263.

It is an arithmetic number, because the mean of its divisors is an integer number (8978926944).

Almost surely, 2^263044226313 is an apocalyptic number.

It is an amenable number.

263044226313 is a deficient number, since it is larger than the sum of its proper divisors (167944266999).

263044226313 is a wasteful number, since it uses less digits than its factorization.

263044226313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625806 (or 625803 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 36.

Adding to 263044226313 its reverse (313622440362), we get a palindrome (576666666675).

The spelling of 263044226313 in words is "two hundred sixty-three billion, forty-four million, two hundred twenty-six thousand, three hundred thirteen".