26243216340547 has 2 divisors, whose sum is σ = 26243216340548. Its totient is φ = 26243216340546.

The previous prime is 26243216340527. The next prime is 26243216340617. The reversal of 26243216340547 is 74504361234262.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26243216340547 - 2¹⁵ = 26243216307779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26243216340547.

It is not a weakly prime, because it can be changed into another prime (26243216340527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13121608170273 + 13121608170274.

It is an arithmetic number, because the mean of its divisors is an integer number (13121608170274).

Almost surely, 2^{26243216340547} is an apocalyptic number.

26243216340547 is a deficient number, since it is larger than the sum of its proper divisors (1).

26243216340547 is an equidigital number, since it uses as much as digits as its factorization.

26243216340547 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5806080, while the sum is 49.

The spelling of 26243216340547 in words is "twenty-six trillion, two hundred forty-three billion, two hundred sixteen million, three hundred forty thousand, five hundred forty-seven".