18948882843 has 24 divisors (see below), whose sum is σ = 29947500336. Its totient is φ = 11450073600.

The previous prime is 18948882829. The next prime is 18948882847. The reversal of 18948882843 is 34828884981.

It is not a de Polignac number, because 18948882843 - 2⁵ = 18948882811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (18948882847) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250618 + ... + 317343.

It is an arithmetic number, because the mean of its divisors is an integer number (1247812514).

Almost surely, 2^18948882843 is an apocalyptic number.

18948882843 is a deficient number, since it is larger than the sum of its proper divisors (10998617493).

18948882843 is a wasteful number, since it uses less digits than its factorization.

18948882843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568315 (or 568312 counting only the distinct ones).

The product of its digits is 28311552, while the sum is 63.

The spelling of 18948882843 in words is "eighteen billion, nine hundred forty-eight million, eight hundred eighty-two thousand, eight hundred forty-three".