26216641431 has 6 divisors (see below), whose sum is σ = 37868482080. Its totient is φ = 17477760948.

The previous prime is 26216641417. The next prime is 26216641453. The reversal of 26216641431 is 13414661262.

26216641431 is a `hidden beast` number, since 2 + 6 + 2 + 1 + 6 + 641 + 4 + 3 + 1 = 666.

It is not a de Polignac number, because 26216641431 - 2⁷ = 26216641303 is a prime.

It is a super-2 number, since 2×26216641431² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26216641531) 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 5 ways as a sum of consecutive naturals, for example, 1456480071 + ... + 1456480088.

It is an arithmetic number, because the mean of its divisors is an integer number (6311413680).

Almost surely, 2^26216641431 is an apocalyptic number.

26216641431 is a deficient number, since it is larger than the sum of its proper divisors (11651840649).

26216641431 is a wasteful number, since it uses less digits than its factorization.

26216641431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2912960165 (or 2912960162 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The spelling of 26216641431 in words is "twenty-six billion, two hundred sixteen million, six hundred forty-one thousand, four hundred thirty-one".