26405312263 has 16 divisors (see below), whose sum is σ = 30328041600. Its totient is φ = 22736803680.

The previous prime is 26405312257. The next prime is 26405312273. The reversal of 26405312263 is 36221350462.

It is a cyclic number.

It is not a de Polignac number, because 26405312263 - 2¹⁷ = 26405181191 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 (26405312273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1382245 + ... + 1401217.

It is an arithmetic number, because the mean of its divisors is an integer number (1895502600).

Almost surely, 2^26405312263 is an apocalyptic number.

26405312263 is a deficient number, since it is larger than the sum of its proper divisors (3922729337).

26405312263 is a wasteful number, since it uses less digits than its factorization.

26405312263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25662.

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 26405312263 in words is "twenty-six billion, four hundred five million, three hundred twelve thousand, two hundred sixty-three".