26345567345 has 4 divisors (see below), whose sum is σ = 31614680820. Its totient is φ = 21076453872.

The previous prime is 26345567323. The next prime is 26345567351. The reversal of 26345567345 is 54376554362.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18067661056 + 8277906289 = 134416^2 + 90983^2 .

It is a cyclic number.

It is not a de Polignac number, because 26345567345 - 2²⁴ = 26328790129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26345567293 and 26345567302.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2634556730 + ... + 2634556739.

It is an arithmetic number, because the mean of its divisors is an integer number (7903670205).

Almost surely, 2^26345567345 is an apocalyptic number.

It is an amenable number.

26345567345 is a deficient number, since it is larger than the sum of its proper divisors (5269113475).

26345567345 is an equidigital number, since it uses as much as digits as its factorization.

26345567345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5269113474.

The product of its digits is 9072000, while the sum is 50.

The spelling of 26345567345 in words is "twenty-six billion, three hundred forty-five million, five hundred sixty-seven thousand, three hundred forty-five".