18219828716 has 6 divisors (see below), whose sum is σ = 31884700260. Its totient is φ = 9109914356.

The previous prime is 18219828703. The next prime is 18219828719. The reversal of 18219828716 is 61782891281.

It is not an unprimeable number, because it can be changed into a prime (18219828719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2277478586 + ... + 2277478593.

It is an arithmetic number, because the mean of its divisors is an integer number (5314116710).

Almost surely, 2^18219828716 is an apocalyptic number.

It is an amenable number.

18219828716 is a deficient number, since it is larger than the sum of its proper divisors (13664871544).

18219828716 is a wasteful number, since it uses less digits than its factorization.

18219828716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4554957183 (or 4554957181 counting only the distinct ones).

The product of its digits is 774144, while the sum is 53.

The spelling of 18219828716 in words is "eighteen billion, two hundred nineteen million, eight hundred twenty-eight thousand, seven hundred sixteen".