18383728202 has 8 divisors (see below), whose sum is σ = 31514962656. Its totient is φ = 7878740652.

The previous prime is 18383728199. The next prime is 18383728219. The reversal of 18383728202 is 20282738381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×18383728202² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656561708 + ... + 656561735.

It is an arithmetic number, because the mean of its divisors is an integer number (3939370332).

Almost surely, 2^18383728202 is an apocalyptic number.

18383728202 is a deficient number, since it is larger than the sum of its proper divisors (13131234454).

18383728202 is a wasteful number, since it uses less digits than its factorization.

18383728202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313123452.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 18383728202 in words is "eighteen billion, three hundred eighty-three million, seven hundred twenty-eight thousand, two hundred two".