26223556261 has 24 divisors (see below), whose sum is σ = 32027458176. Its totient is φ = 21028189440.

The previous prime is 26223556243. The next prime is 26223556267. The reversal of 26223556261 is 16265532262.

It is not a de Polignac number, because 26223556261 - 2⁷ = 26223556133 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26223556267) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 299031 + ... + 376651.

It is an arithmetic number, because the mean of its divisors is an integer number (1334477424).

Almost surely, 2^26223556261 is an apocalyptic number.

It is an amenable number.

26223556261 is a deficient number, since it is larger than the sum of its proper divisors (5803901915).

26223556261 is a wasteful number, since it uses less digits than its factorization.

26223556261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77829 (or 77812 counting only the distinct ones).

The product of its digits is 259200, while the sum is 40.

The spelling of 26223556261 in words is "twenty-six billion, two hundred twenty-three million, five hundred fifty-six thousand, two hundred sixty-one".