26369632397393 has 2 divisors, whose sum is σ = 26369632397394. Its totient is φ = 26369632397392.

The previous prime is 26369632397293. The next prime is 26369632397443. The reversal of 26369632397393 is 39379323696362.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18293310676624 + 8076321720769 = 4277068^2 + 2841887^2 .

It is a cyclic number.

It is not a de Polignac number, because 26369632397393 - 2²² = 26369628203089 is a prime.

It is not a weakly prime, because it can be changed into another prime (26369632397293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13184816198696 + 13184816198697.

It is an arithmetic number, because the mean of its divisors is an integer number (13184816198697).

Almost surely, 2^{26369632397393} is an apocalyptic number.

It is an amenable number.

26369632397393 is a deficient number, since it is larger than the sum of its proper divisors (1).

26369632397393 is an equidigital number, since it uses as much as digits as its factorization.

26369632397393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1071385056, while the sum is 71.

The spelling of 26369632397393 in words is "twenty-six trillion, three hundred sixty-nine billion, six hundred thirty-two million, three hundred ninety-seven thousand, three hundred ninety-three".