18198380182 has 16 divisors (see below), whose sum is σ = 28457138304. Its totient is φ = 8718480000.

The previous prime is 18198380173. The next prime is 18198380231. The reversal of 18198380182 is 28108389181.

It is a super-2 number, since 2×18198380182² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1446819 + ... + 1459342.

It is an arithmetic number, because the mean of its divisors is an integer number (1778571144).

Almost surely, 2^18198380182 is an apocalyptic number.

18198380182 is a deficient number, since it is larger than the sum of its proper divisors (10258758122).

18198380182 is a wasteful number, since it uses less digits than its factorization.

18198380182 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2906295.

The product of its (nonzero) digits is 221184, while the sum is 49.

The spelling of 18198380182 in words is "eighteen billion, one hundred ninety-eight million, three hundred eighty thousand, one hundred eighty-two".