26545207329 has 45 divisors (see below), whose sum is σ = 40694243139. Its totient is φ = 17244193680.

The previous prime is 26545207319. The next prime is 26545207393. The reversal of 26545207329 is 92370254562.

The square root of 26545207329 is 162927.

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

26545207329 is a `hidden beast` number, since 2 + 6 + 54 + 520 + 73 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 125955729 + 26419251600 = 11223^2 + 162540^2 .

It is not a de Polignac number, because 26545207329 - 2¹⁵ = 26545174561 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26545207309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 63052539 + ... + 63052959.

Almost surely, 2^26545207329 is an apocalyptic number.

26545207329 is the 162927-th square number.

26545207329 is the 81464-th centered octagonal number.

It is an amenable number.

26545207329 is a deficient number, since it is larger than the sum of its proper divisors (14149035810).

26545207329 is an frugal number, since it uses more digits than its factorization.

26545207329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 940 (or 467 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 45.

The spelling of 26545207329 in words is "twenty-six billion, five hundred forty-five million, two hundred seven thousand, three hundred twenty-nine".