26253421444 has 6 divisors (see below), whose sum is σ = 45943487534. Its totient is φ = 13126710720.

The previous prime is 26253421409. The next prime is 26253421457. The reversal of 26253421444 is 44412435262.

It can be written as a sum of positive squares in only one way, i.e., 20217996100 + 6035425344 = 142190^2 + 77688^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 3281677677 + ... + 3281677684.

Almost surely, 2^26253421444 is an apocalyptic number.

It is an amenable number.

26253421444 is a deficient number, since it is larger than the sum of its proper divisors (19690066090).

26253421444 is a wasteful number, since it uses less digits than its factorization.

26253421444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6563355365 (or 6563355363 counting only the distinct ones).

The product of its digits is 184320, while the sum is 37.

The spelling of 26253421444 in words is "twenty-six billion, two hundred fifty-three million, four hundred twenty-one thousand, four hundred forty-four".