26040225397 has 2 divisors, whose sum is σ = 26040225398. Its totient is φ = 26040225396.

The previous prime is 26040225373. The next prime is 26040225413. The reversal of 26040225397 is 79352204062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20900195761 + 5140029636 = 144569^2 + 71694^2 .

It is a cyclic number.

It is not a de Polignac number, because 26040225397 - 2¹⁹ = 26039701109 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26040225317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13020112698 + 13020112699.

It is an arithmetic number, because the mean of its divisors is an integer number (13020112699).

Almost surely, 2^26040225397 is an apocalyptic number.

It is an amenable number.

26040225397 is a deficient number, since it is larger than the sum of its proper divisors (1).

26040225397 is an equidigital number, since it uses as much as digits as its factorization.

26040225397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 40.

The spelling of 26040225397 in words is "twenty-six billion, forty million, two hundred twenty-five thousand, three hundred ninety-seven".