18768492616 has 16 divisors (see below), whose sum is σ = 35459558640. Its totient is φ = 9312610320.

The previous prime is 18768492601. The next prime is 18768492671. The reversal of 18768492616 is 61629486781.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8953386 + ... + 8955481.

It is an arithmetic number, because the mean of its divisors is an integer number (2216222415).

Almost surely, 2^18768492616 is an apocalyptic number.

It is an amenable number.

18768492616 is a deficient number, since it is larger than the sum of its proper divisors (16691066024).

18768492616 is a wasteful number, since it uses less digits than its factorization.

18768492616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17909004 (or 17909000 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 58.

The spelling of 18768492616 in words is "eighteen billion, seven hundred sixty-eight million, four hundred ninety-two thousand, six hundred sixteen".