26263319567813 has 2 divisors, whose sum is σ = 26263319567814. Its totient is φ = 26263319567812.

The previous prime is 26263319567809. The next prime is 26263319567893. The reversal of 26263319567813 is 31876591336262.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14524315522084 + 11739004045729 = 3811078^2 + 3426223^2 .

It is a cyclic number.

It is not a de Polignac number, because 26263319567813 - 2² = 26263319567809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26263319567893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13131659783906 + 13131659783907.

It is an arithmetic number, because the mean of its divisors is an integer number (13131659783907).

Almost surely, 2^{26263319567813} is an apocalyptic number.

It is an amenable number.

26263319567813 is a deficient number, since it is larger than the sum of its proper divisors (1).

26263319567813 is an equidigital number, since it uses as much as digits as its factorization.

26263319567813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58786560, while the sum is 62.

The spelling of 26263319567813 in words is "twenty-six trillion, two hundred sixty-three billion, three hundred nineteen million, five hundred sixty-seven thousand, eight hundred thirteen".