26704913782478 has 4 divisors (see below), whose sum is σ = 40057370673720. Its totient is φ = 13352456891238.

The previous prime is 26704913782429. The next prime is 26704913782487. The reversal of 26704913782478 is 87428731940762.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6676228445618 + ... + 6676228445621.

It is an arithmetic number, because the mean of its divisors is an integer number (10014342668430).

Almost surely, 2^{26704913782478} is an apocalyptic number.

26704913782478 is a deficient number, since it is larger than the sum of its proper divisors (13352456891242).

26704913782478 is a wasteful number, since it uses less digits than its factorization.

26704913782478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13352456891241.

The product of its (nonzero) digits is 227598336, while the sum is 68.

The spelling of 26704913782478 in words is "twenty-six trillion, seven hundred four billion, nine hundred thirteen million, seven hundred eighty-two thousand, four hundred seventy-eight".