26343430247 has 2 divisors, whose sum is σ = 26343430248. Its totient is φ = 26343430246.

The previous prime is 26343430241. The next prime is 26343430291. The reversal of 26343430247 is 74203434362.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26343430247 - 2¹⁶ = 26343364711 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26343430247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26343430241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13171715123 + 13171715124.

It is an arithmetic number, because the mean of its divisors is an integer number (13171715124).

Almost surely, 2^26343430247 is an apocalyptic number.

26343430247 is a deficient number, since it is larger than the sum of its proper divisors (1).

26343430247 is an equidigital number, since it uses as much as digits as its factorization.

26343430247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 290304, while the sum is 38.

The spelling of 26343430247 in words is "twenty-six billion, three hundred forty-three million, four hundred thirty thousand, two hundred forty-seven".