18641009706 has 48 divisors (see below), whose sum is σ = 42924606048. Its totient is φ = 5351479200.

The previous prime is 18641009671. The next prime is 18641009713. The reversal of 18641009706 is 60790014681.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 367365 + ... + 415016.

It is an arithmetic number, because the mean of its divisors is an integer number (894262626).

Almost surely, 2^18641009706 is an apocalyptic number.

18641009706 is an abundant number, since it is smaller than the sum of its proper divisors (24283596342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18641009706 is a wasteful number, since it uses less digits than its factorization.

18641009706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782435 (or 782416 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 18641009706 in words is "eighteen billion, six hundred forty-one million, nine thousand, seven hundred six".