26284081345 has 4 divisors (see below), whose sum is σ = 31540897620. Its totient is φ = 21027265072.

The previous prime is 26284081283. The next prime is 26284081363. The reversal of 26284081345 is 54318048262.

It is a happy number.

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 13195806129 + 13088275216 = 114873^2 + 114404^2 .

It is a cyclic number.

It is not a de Polignac number, because 26284081345 - 2¹⁵ = 26284048577 is a prime.

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, 2628408130 + ... + 2628408139.

It is an arithmetic number, because the mean of its divisors is an integer number (7885224405).

Almost surely, 2^26284081345 is an apocalyptic number.

It is an amenable number.

26284081345 is a deficient number, since it is larger than the sum of its proper divisors (5256816275).

26284081345 is an equidigital number, since it uses as much as digits as its factorization.

26284081345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5256816274.

The product of its (nonzero) digits is 368640, while the sum is 43.

The spelling of 26284081345 in words is "twenty-six billion, two hundred eighty-four million, eighty-one thousand, three hundred forty-five".