26806305388 has 24 divisors (see below), whose sum is σ = 47082357504. Its totient is φ = 13354242000.

The previous prime is 26806305367. The next prime is 26806305451. The reversal of 26806305388 is 88350360862.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5006913 + ... + 5012263.

It is an arithmetic number, because the mean of its divisors is an integer number (1961764896).

Almost surely, 2^26806305388 is an apocalyptic number.

It is an amenable number.

26806305388 is a deficient number, since it is larger than the sum of its proper divisors (20276052116).

26806305388 is a wasteful number, since it uses less digits than its factorization.

26806305388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9693 (or 9691 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 49.

The spelling of 26806305388 in words is "twenty-six billion, eight hundred six million, three hundred five thousand, three hundred eighty-eight".