26420986947844 has 12 divisors (see below), whose sum is σ = 46236974574924. Its totient is φ = 13210422783584.

The previous prime is 26420986947811. The next prime is 26420986947863. The reversal of 26420986947844 is 44874968902462.

It can be written as a sum of positive squares in 2 ways, for example, as 19080192775744 + 7340794172100 = 4368088^2 + 2709390^2 .

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, 16827139 + ... + 18330154.

It is an arithmetic number, because the mean of its divisors is an integer number (3853081214577).

Almost surely, 2^{26420986947844} is an apocalyptic number.

It is an amenable number.

26420986947844 is a deficient number, since it is larger than the sum of its proper divisors (19815987627080).

26420986947844 is a wasteful number, since it uses less digits than its factorization.

26420986947844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35345174 (or 35345172 counting only the distinct ones).

The product of its (nonzero) digits is 1337720832, while the sum is 73.

The spelling of 26420986947844 in words is "twenty-six trillion, four hundred twenty billion, nine hundred eighty-six million, nine hundred forty-seven thousand, eight hundred forty-four".