26809620662 has 16 divisors (see below), whose sum is σ = 45383058000. Its totient is φ = 11765977440.

The previous prime is 26809620587. The next prime is 26809620671. The reversal of 26809620662 is 26602690862.

It is a happy number.

26809620662 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21010037 + ... + 21011312.

It is an arithmetic number, because the mean of its divisors is an integer number (2836441125).

Almost surely, 2^26809620662 is an apocalyptic number.

26809620662 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

26809620662 is a deficient number, since it is larger than the sum of its proper divisors (18573437338).

26809620662 is a wasteful number, since it uses less digits than its factorization.

26809620662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42021391.

The product of its (nonzero) digits is 746496, while the sum is 47.

The spelling of 26809620662 in words is "twenty-six billion, eight hundred nine million, six hundred twenty thousand, six hundred sixty-two".