26213231263 has 4 divisors (see below), whose sum is σ = 26214404608. Its totient is φ = 26212057920.

The previous prime is 26213231251. The next prime is 26213231267. The reversal of 26213231263 is 36213231262.

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

It is a cyclic number.

It is not a de Polignac number, because 26213231263 - 2⁹ = 26213230751 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 (26213231267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552498 + ... + 598063.

It is an arithmetic number, because the mean of its divisors is an integer number (6553601152).

Almost surely, 2^26213231263 is an apocalyptic number.

26213231263 is a deficient number, since it is larger than the sum of its proper divisors (1173345).

26213231263 is a wasteful number, since it uses less digits than its factorization.

26213231263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173344.

The product of its digits is 15552, while the sum is 31.

Subtracting 26213231263 from its reverse (36213231262), we obtain a palindrome (9999999999).

The spelling of 26213231263 in words is "twenty-six billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred sixty-three".