18946830936 has 64 divisors (see below), whose sum is σ = 51849745920. Its totient is φ = 5721845120.

The previous prime is 18946830901. The next prime is 18946830941. The reversal of 18946830936 is 63903864981.

It is a happy number.

It is a congruent number.

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, 45120 + ... + 199823.

It is an arithmetic number, because the mean of its divisors is an integer number (810152280).

Almost surely, 2^18946830936 is an apocalyptic number.

It is an amenable number.

18946830936 is an abundant number, since it is smaller than the sum of its proper divisors (32902914984).

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

18946830936 is a wasteful number, since it uses less digits than its factorization.

18946830936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245256 (or 245252 counting only the distinct ones).

The product of its (nonzero) digits is 6718464, while the sum is 57.

The spelling of 18946830936 in words is "eighteen billion, nine hundred forty-six million, eight hundred thirty thousand, nine hundred thirty-six".