26265263421 has 16 divisors (see below), whose sum is σ = 35886469248. Its totient is φ = 17077401600.

The previous prime is 26265263389. The next prime is 26265263443. The reversal of 26265263421 is 12436256262.

It is not a de Polignac number, because 26265263421 - 2⁵ = 26265263389 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 26265263421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26265263221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 351816 + ... + 419886.

It is an arithmetic number, because the mean of its divisors is an integer number (2242904328).

Almost surely, 2^26265263421 is an apocalyptic number.

It is an amenable number.

26265263421 is a deficient number, since it is larger than the sum of its proper divisors (9621205827).

26265263421 is a wasteful number, since it uses less digits than its factorization.

26265263421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71252.

The product of its digits is 207360, while the sum is 39.

The spelling of 26265263421 in words is "twenty-six billion, two hundred sixty-five million, two hundred sixty-three thousand, four hundred twenty-one".