26808913642 has 16 divisors (see below), whose sum is σ = 47542901760. Its totient is φ = 11093343408.

The previous prime is 26808913619. The next prime is 26808913667. The reversal of 26808913642 is 24631980862.

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 in 7 ways as a sum of consecutive naturals, for example, 33015498 + ... + 33016309.

It is an arithmetic number, because the mean of its divisors is an integer number (2971431360).

Almost surely, 2^26808913642 is an apocalyptic number.

26808913642 is a deficient number, since it is larger than the sum of its proper divisors (20733988118).

26808913642 is a wasteful number, since it uses less digits than its factorization.

26808913642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66031845.

The product of its (nonzero) digits is 995328, while the sum is 49.

The spelling of 26808913642 in words is "twenty-six billion, eight hundred eight million, nine hundred thirteen thousand, six hundred forty-two".