26780816 has 20 divisors (see below), whose sum is σ = 52376112. Its totient is φ = 13264416.

The previous prime is 26780801. The next prime is 26780821. The reversal of 26780816 is 61808762.

It is a self number, because there is not a number n which added to its sum of digits gives 26780816.

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, 6110 + ... + 9533.

Almost surely, 2^26780816 is an apocalyptic number.

It is an amenable number.

26780816 is a deficient number, since it is larger than the sum of its proper divisors (25595296).

26780816 is a wasteful number, since it uses less digits than its factorization.

26780816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15758 (or 15752 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 38.

The square root of 26780816 is about 5175.0184540734. The cubic root of 26780816 is about 299.1860007558.

The spelling of 26780816 in words is "twenty-six million, seven hundred eighty thousand, eight hundred sixteen".