26234511543261 has 48 divisors (see below), whose sum is σ = 43469702348800. Its totient is φ = 14935159118880.

The previous prime is 26234511543221. The next prime is 26234511543299. The reversal of 26234511543261 is 16234511543262.

26234511543261 is a `hidden beast` number, since 2 + 6 + 2 + 3 + 45 + 1 + 1 + 543 + 2 + 61 = 666.

It is not a de Polignac number, because 26234511543261 - 2¹⁹ = 26234511018973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26234511543221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 28723716 + ... + 29622978.

Almost surely, 2^{26234511543261} is an apocalyptic number.

26234511543261 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

26234511543261 is a deficient number, since it is larger than the sum of its proper divisors (17235190805539).

26234511543261 is a wasteful number, since it uses less digits than its factorization.

26234511543261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901006 (or 901003 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 45.

Subtracting from 26234511543261 its reverse (16234511543262), we obtain a palindrome (9999999999999).

The spelling of 26234511543261 in words is "twenty-six trillion, two hundred thirty-four billion, five hundred eleven million, five hundred forty-three thousand, two hundred sixty-one".