26439454849168 has 20 divisors (see below), whose sum is σ = 51260754897468. Its totient is φ = 13210872940160.

The previous prime is 26439454849147. The next prime is 26439454849187. The reversal of 26439454849168 is 86194845493462.

It can be written as a sum of positive squares in 2 ways, for example, as 24255349200784 + 2184105648384 = 4924972^2 + 1477872^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26439454849168.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 553380643 + ... + 553428418.

Almost surely, 2^{26439454849168} is an apocalyptic number.

It is an amenable number.

26439454849168 is a deficient number, since it is larger than the sum of its proper divisors (24821300048300).

26439454849168 is a wasteful number, since it uses less digits than its factorization.

26439454849168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106810562 (or 1106810556 counting only the distinct ones).

The product of its digits is 1433272320, while the sum is 73.

The spelling of 26439454849168 in words is "twenty-six trillion, four hundred thirty-nine billion, four hundred fifty-four million, eight hundred forty-nine thousand, one hundred sixty-eight".