26428866448 has 20 divisors (see below), whose sum is σ = 51214383900. Its totient is φ = 13212251264.

The previous prime is 26428866437. The next prime is 26428866461. The reversal of 26428866448 is 84466882462.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12483145984 + 13945720464 = 111728^2 + 118092^2 .

It is a junction number, because it is equal to n+sod(n) for n = 26428866392 and 26428866401.

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 in 3 ways as a sum of consecutive naturals, for example, 34123 + ... + 232426.

It is an arithmetic number, because the mean of its divisors is an integer number (2560719195).

Almost surely, 2^26428866448 is an apocalyptic number.

It is an amenable number.

26428866448 is a deficient number, since it is larger than the sum of its proper divisors (24785517452).

26428866448 is a wasteful number, since it uses less digits than its factorization.

26428866448 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272754 (or 272748 counting only the distinct ones).

The product of its digits is 28311552, while the sum is 58.

The spelling of 26428866448 in words is "twenty-six billion, four hundred twenty-eight million, eight hundred sixty-six thousand, four hundred forty-eight".