13526342881 has 2 divisors, whose sum is σ = 13526342882. Its totient is φ = 13526342880.

The previous prime is 13526342857. The next prime is 13526342897. The reversal of 13526342881 is 18824362531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9631459600 + 3894883281 = 98140^2 + 62409^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13526342881 is a prime.

It is a super-2 number, since 2×13526342881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13526342831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6763171440 + 6763171441.

It is an arithmetic number, because the mean of its divisors is an integer number (6763171441).

Almost surely, 2^13526342881 is an apocalyptic number.

It is an amenable number.

13526342881 is a deficient number, since it is larger than the sum of its proper divisors (1).

13526342881 is an equidigital number, since it uses as much as digits as its factorization.

13526342881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 276480, while the sum is 43.

The spelling of 13526342881 in words is "thirteen billion, five hundred twenty-six million, three hundred forty-two thousand, eight hundred eighty-one".