26520312263 has 4 divisors (see below), whose sum is σ = 26521598328. Its totient is φ = 26519026200.

The previous prime is 26520312229. The next prime is 26520312281. The reversal of 26520312263 is 36221302562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36221302562 = 2 ⋅18110651281.

It is a cyclic number.

It is not a de Polignac number, because 26520312263 - 2⁶ = 26520312199 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 (26520362263) 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, 611588 + ... + 653513.

It is an arithmetic number, because the mean of its divisors is an integer number (6630399582).

Almost surely, 2^26520312263 is an apocalyptic number.

26520312263 is a deficient number, since it is larger than the sum of its proper divisors (1286065).

26520312263 is a wasteful number, since it uses less digits than its factorization.

26520312263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1286064.

The product of its (nonzero) digits is 25920, while the sum is 32.

The spelling of 26520312263 in words is "twenty-six billion, five hundred twenty million, three hundred twelve thousand, two hundred sixty-three".