26472266209 has 3 divisors (see below), whose sum is σ = 26472428913. Its totient is φ = 26472103506.

The previous prime is 26472266203. The next prime is 26472266273. The reversal of 26472266209 is 90266227462.

The square root of 26472266209 is 162703.

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 26472266209 - 2⁷ = 26472266081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26472266203) 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, 81352 + ... + 244054.

It is an arithmetic number, because the mean of its divisors is an integer number (8824142971).

Almost surely, 2^26472266209 is an apocalyptic number.

26472266209 is the 162703-rd square number.

26472266209 is the 81352-nd centered octagonal number.

It is an amenable number.

26472266209 is a deficient number, since it is larger than the sum of its proper divisors (162704).

26472266209 is an frugal number, since it uses more digits than its factorization.

26472266209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325406 (or 162703 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

It can be divided in two parts, 26472 and 266209, that added together give a square (292681 = 541²).

The spelling of 26472266209 in words is "twenty-six billion, four hundred seventy-two million, two hundred sixty-six thousand, two hundred nine".