26430325513 has 2 divisors, whose sum is σ = 26430325514. Its totient is φ = 26430325512.

The previous prime is 26430325507. The next prime is 26430325529. The reversal of 26430325513 is 31552303462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19040688144 + 7389637369 = 137988^2 + 85963^2 .

It is a cyclic number.

It is not a de Polignac number, because 26430325513 - 2⁹ = 26430325001 is a prime.

It is not a weakly prime, because it can be changed into another prime (26430328513) 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, 13215162756 + 13215162757.

It is an arithmetic number, because the mean of its divisors is an integer number (13215162757).

Almost surely, 2^26430325513 is an apocalyptic number.

It is an amenable number.

26430325513 is a deficient number, since it is larger than the sum of its proper divisors (1).

26430325513 is an equidigital number, since it uses as much as digits as its factorization.

26430325513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 34.

Adding to 26430325513 its reverse (31552303462), we get a palindrome (57982628975).

The spelling of 26430325513 in words is "twenty-six billion, four hundred thirty million, three hundred twenty-five thousand, five hundred thirteen".