26803814490045 has 12 divisors (see below), whose sum is σ = 46459945116156. Its totient is φ = 14295367728000.

The previous prime is 26803814489987. The next prime is 26803814490139. The reversal of 26803814490045 is 54009441830862.

26803814490045 is a `hidden beast` number, since 2 + 6 + 80 + 3 + 81 + 449 + 0 + 0 + 45 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 4448298591801 + 22355515898244 = 2109099^2 + 4728162^2 .

It is not a de Polignac number, because 26803814490045 - 2²⁶ = 26803747381181 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26803814489973 and 26803814490000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 297820160956 + ... + 297820161045.

It is an arithmetic number, because the mean of its divisors is an integer number (3871662093013).

Almost surely, 2^{26803814490045} is an apocalyptic number.

It is an amenable number.

26803814490045 is a deficient number, since it is larger than the sum of its proper divisors (19656130626111).

26803814490045 is a wasteful number, since it uses less digits than its factorization.

26803814490045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 595640322012 (or 595640322009 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 54.

The spelling of 26803814490045 in words is "twenty-six trillion, eight hundred three billion, eight hundred fourteen million, four hundred ninety thousand, forty-five".