2018403963 has 12 divisors (see below), whose sum is σ = 2921053720. Its totient is φ = 1343026656.

The previous prime is 2018403949. The next prime is 2018403971. The reversal of 2018403963 is 3693048102.

It is not a de Polignac number, because 2018403963 - 2²⁰ = 2017355387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2018403913) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 209698 + ... + 219111.

Almost surely, 2^2018403963 is an apocalyptic number.

2018403963 is a deficient number, since it is larger than the sum of its proper divisors (902649757).

2018403963 is a wasteful number, since it uses less digits than its factorization.

2018403963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429338 (or 429335 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 2018403963 is about 44926.6509212516. The cubic root of 2018403963 is about 1263.7738462277.

The spelling of 2018403963 in words is "two billion, eighteen million, four hundred three thousand, nine hundred sixty-three".