26144626249 has 9 divisors (see below), whose sum is σ = 30414453357. Its totient is φ = 22408709484.

The previous prime is 26144626229. The next prime is 26144626267. The reversal of 26144626249 is 94262644162.

The square root of 26144626249 is 161693.

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

It is not a de Polignac number, because 26144626249 - 2¹⁹ = 26144101961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26144626199 and 26144626208.

It is not an unprimeable number, because it can be changed into a prime (26144626219) 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 8 ways as a sum of consecutive naturals, for example, 1120302 + ... + 1143400.

Almost surely, 2^26144626249 is an apocalyptic number.

26144626249 is the 161693-rd square number.

26144626249 is the 80847-th centered octagonal number.

It is an amenable number.

26144626249 is a deficient number, since it is larger than the sum of its proper divisors (4269827108).

26144626249 is an frugal number, since it uses more digits than its factorization.

26144626249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46212 (or 23106 counting only the distinct ones).

The product of its digits is 995328, while the sum is 46.

The spelling of 26144626249 in words is "twenty-six billion, one hundred forty-four million, six hundred twenty-six thousand, two hundred forty-nine".