26241181697 has 2 divisors, whose sum is σ = 26241181698. Its totient is φ = 26241181696.

The previous prime is 26241181667. The next prime is 26241181807. The reversal of 26241181697 is 79618114262.

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., 24729449536 + 1511732161 = 157256^2 + 38881^2 .

It is a cyclic number.

It is not a de Polignac number, because 26241181697 - 2¹² = 26241177601 is a prime.

It is not a weakly prime, because it can be changed into another prime (26241181667) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13120590848 + 13120590849.

It is an arithmetic number, because the mean of its divisors is an integer number (13120590849).

Almost surely, 2^26241181697 is an apocalyptic number.

It is an amenable number.

26241181697 is a deficient number, since it is larger than the sum of its proper divisors (1).

26241181697 is an equidigital number, since it uses as much as digits as its factorization.

26241181697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 47.

The spelling of 26241181697 in words is "twenty-six billion, two hundred forty-one million, one hundred eighty-one thousand, six hundred ninety-seven".