26340369850369 has 3 divisors (see below), whose sum is σ = 26340374982657. Its totient is φ = 26340364718082.

The previous prime is 26340369850367. The next prime is 26340369850391. The reversal of 26340369850369 is 96305896304362.

The square root of 26340369850369 is 5132287.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 26340369850369 - 2¹ = 26340369850367 is a prime.

It is a super-2 number, since 2×26340369850369² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26340369850369.

It is not an unprimeable number, because it can be changed into a prime (26340369850367) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2566144 + ... + 7698430.

It is an arithmetic number, because the mean of its divisors is an integer number (8780124994219).

Almost surely, 2^{26340369850369} is an apocalyptic number.

26340369850369 is the 5132287-th square number.

26340369850369 is the 2566144-th centered octagonal number.

It is an amenable number.

26340369850369 is a deficient number, since it is larger than the sum of its proper divisors (5132288).

26340369850369 is an frugal number, since it uses more digits than its factorization.

26340369850369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10264574 (or 5132287 counting only the distinct ones).

The product of its (nonzero) digits is 151165440, while the sum is 64.

The spelling of 26340369850369 in words is "twenty-six trillion, three hundred forty billion, three hundred sixty-nine million, eight hundred fifty thousand, three hundred sixty-nine".