18016779026 has 32 divisors (see below), whose sum is σ = 27603763200. Its totient is φ = 8817840720.

The previous prime is 18016779019. The next prime is 18016779049. The reversal of 18016779026 is 62097761081.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10833071 + ... + 10834733.

It is an arithmetic number, because the mean of its divisors is an integer number (862617600).

Almost surely, 2^18016779026 is an apocalyptic number.

18016779026 is a deficient number, since it is larger than the sum of its proper divisors (9586984174).

18016779026 is a wasteful number, since it uses less digits than its factorization.

18016779026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2294.

The product of its (nonzero) digits is 254016, while the sum is 47.

The spelling of 18016779026 in words is "eighteen billion, sixteen million, seven hundred seventy-nine thousand, twenty-six".