26943247225 has 6 divisors (see below), whose sum is σ = 33409626590. Its totient is φ = 21554597760.

The previous prime is 26943247223. The next prime is 26943247361. The reversal of 26943247225 is 52274234962.

It can be written as a sum of positive squares in 3 ways, for example, as 9011894761 + 17931352464 = 94931^2 + 133908^2 .

It is not a de Polignac number, because 26943247225 - 2¹ = 26943247223 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26943247223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 538864920 + ... + 538864969.

Almost surely, 2^26943247225 is an apocalyptic number.

26943247225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26943247225 is a deficient number, since it is larger than the sum of its proper divisors (6466379365).

26943247225 is a wasteful number, since it uses less digits than its factorization.

26943247225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077729899 (or 1077729894 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 46.

The spelling of 26943247225 in words is "twenty-six billion, nine hundred forty-three million, two hundred forty-seven thousand, two hundred twenty-five".