26871081603 has 16 divisors (see below), whose sum is σ = 37940576256. Its totient is φ = 16858094720.

The previous prime is 26871081577. The next prime is 26871081617. The reversal of 26871081603 is 30618017862.

It is a cyclic number.

It is not a de Polignac number, because 26871081603 - 2⁹ = 26871081091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26871081103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 420550 + ... + 480212.

It is an arithmetic number, because the mean of its divisors is an integer number (2371286016).

Almost surely, 2^26871081603 is an apocalyptic number.

26871081603 is a deficient number, since it is larger than the sum of its proper divisors (11069494653).

26871081603 is a wasteful number, since it uses less digits than its factorization.

26871081603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68514.

The product of its (nonzero) digits is 96768, while the sum is 42.

The spelling of 26871081603 in words is "twenty-six billion, eight hundred seventy-one million, eighty-one thousand, six hundred three".