26512136447 has 2 divisors, whose sum is σ = 26512136448. Its totient is φ = 26512136446.

The previous prime is 26512136437. The next prime is 26512136461. The reversal of 26512136447 is 74463121562.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 26512136447 - 2¹² = 26512132351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26512136437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13256068223 + 13256068224.

It is an arithmetic number, because the mean of its divisors is an integer number (13256068224).

Almost surely, 2^26512136447 is an apocalyptic number.

26512136447 is a deficient number, since it is larger than the sum of its proper divisors (1).

26512136447 is an equidigital number, since it uses as much as digits as its factorization.

26512136447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 41.

The spelling of 26512136447 in words is "twenty-six billion, five hundred twelve million, one hundred thirty-six thousand, four hundred forty-seven".