26194807393 has 2 divisors, whose sum is σ = 26194807394. Its totient is φ = 26194807392.

The previous prime is 26194807363. The next prime is 26194807423. The reversal of 26194807393 is 39370849162.

It is a balanced prime because it is at equal distance from previous prime (26194807363) and next prime (26194807423).

It can be written as a sum of positive squares in only one way, i.e., 25308673569 + 886133824 = 159087^2 + 29768^2 .

It is a cyclic number.

It is not a de Polignac number, because 26194807393 - 2²¹ = 26192710241 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26194807393.

It is not a weakly prime, because it can be changed into another prime (26194807313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13097403696 + 13097403697.

It is an arithmetic number, because the mean of its divisors is an integer number (13097403697).

Almost surely, 2^26194807393 is an apocalyptic number.

It is an amenable number.

26194807393 is a deficient number, since it is larger than the sum of its proper divisors (1).

26194807393 is an equidigital number, since it uses as much as digits as its factorization.

26194807393 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 52.

The spelling of 26194807393 in words is "twenty-six billion, one hundred ninety-four million, eight hundred seven thousand, three hundred ninety-three".