13426506435569 has 4 divisors (see below), whose sum is σ = 14133164669040. Its totient is φ = 12719848202100.

The previous prime is 13426506435541. The next prime is 13426506435577. The reversal of 13426506435569 is 96553460562431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13426506435569 - 2⁸ = 13426506435313 is a prime.

It is a super-2 number, since 2×13426506435569² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13426506435869) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353329116707 + ... + 353329116744.

It is an arithmetic number, because the mean of its divisors is an integer number (3533291167260).

Almost surely, 2^{13426506435569} is an apocalyptic number.

13426506435569 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

13426506435569 is a deficient number, since it is larger than the sum of its proper divisors (706658233471).

13426506435569 is an equidigital number, since it uses as much as digits as its factorization.

13426506435569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 706658233470.

The product of its (nonzero) digits is 69984000, while the sum is 59.

The spelling of 13426506435569 in words is "thirteen trillion, four hundred twenty-six billion, five hundred six million, four hundred thirty-five thousand, five hundred sixty-nine".