26729379563 has 2 divisors, whose sum is σ = 26729379564. Its totient is φ = 26729379562.

The previous prime is 26729379533. The next prime is 26729379577. The reversal of 26729379563 is 36597392762.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26729379563 - 2²⁰ = 26728330987 is a prime.

It is not a weakly prime, because it can be changed into another prime (26729379503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13364689781 + 13364689782.

It is an arithmetic number, because the mean of its divisors is an integer number (13364689782).

Almost surely, 2^26729379563 is an apocalyptic number.

26729379563 is a deficient number, since it is larger than the sum of its proper divisors (1).

26729379563 is an equidigital number, since it uses as much as digits as its factorization.

26729379563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25719120, while the sum is 59.

The spelling of 26729379563 in words is "twenty-six billion, seven hundred twenty-nine million, three hundred seventy-nine thousand, five hundred sixty-three".