26631005113 has 2 divisors, whose sum is σ = 26631005114. Its totient is φ = 26631005112.

The previous prime is 26631005077. The next prime is 26631005117. The reversal of 26631005113 is 31150013662.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17190356544 + 9440648569 = 131112^2 + 97163^2 .

It is a cyclic number.

It is not a de Polignac number, because 26631005113 - 2¹⁷ = 26630874041 is a prime.

It is not a weakly prime, because it can be changed into another prime (26631005117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13315502556 + 13315502557.

It is an arithmetic number, because the mean of its divisors is an integer number (13315502557).

Almost surely, 2^26631005113 is an apocalyptic number.

It is an amenable number.

26631005113 is a deficient number, since it is larger than the sum of its proper divisors (1).

26631005113 is an equidigital number, since it uses as much as digits as its factorization.

26631005113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 26631005113 its reverse (31150013662), we get a palindrome (57781018775).

The spelling of 26631005113 in words is "twenty-six billion, six hundred thirty-one million, five thousand, one hundred thirteen".