26426333641 has 2 divisors, whose sum is σ = 26426333642. Its totient is φ = 26426333640.

The previous prime is 26426333629. The next prime is 26426333663. The reversal of 26426333641 is 14633362462.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25740993600 + 685340041 = 160440^2 + 26179^2 .

It is a cyclic number.

It is not a de Polignac number, because 26426333641 - 2⁷ = 26426333513 is a prime.

It is a super-2 number, since 2×26426333641² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 26426333594 and 26426333603.

It is not a weakly prime, because it can be changed into another prime (26426333611) 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 as a sum of consecutive naturals, namely, 13213166820 + 13213166821.

It is an arithmetic number, because the mean of its divisors is an integer number (13213166821).

Almost surely, 2^26426333641 is an apocalyptic number.

It is an amenable number.

26426333641 is a deficient number, since it is larger than the sum of its proper divisors (1).

26426333641 is an equidigital number, since it uses as much as digits as its factorization.

26426333641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 373248, while the sum is 40.

The spelling of 26426333641 in words is "twenty-six billion, four hundred twenty-six million, three hundred thirty-three thousand, six hundred forty-one".