26364234563 has 2 divisors, whose sum is σ = 26364234564. Its totient is φ = 26364234562.

The previous prime is 26364234553. The next prime is 26364234607. The reversal of 26364234563 is 36543246362.

It is an a-pointer prime, because the next prime (26364234607) can be obtained adding 26364234563 to its sum of digits (44).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26364234563 - 2²⁰ = 26363185987 is a prime.

It is not a weakly prime, because it can be changed into another prime (26364234553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13182117281 + 13182117282.

It is an arithmetic number, because the mean of its divisors is an integer number (13182117282).

Almost surely, 2^26364234563 is an apocalyptic number.

26364234563 is a deficient number, since it is larger than the sum of its proper divisors (1).

26364234563 is an equidigital number, since it uses as much as digits as its factorization.

26364234563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1866240, while the sum is 44.

The spelling of 26364234563 in words is "twenty-six billion, three hundred sixty-four million, two hundred thirty-four thousand, five hundred sixty-three".