18370945356 has 12 divisors (see below), whose sum is σ = 42865539192. Its totient is φ = 6123648448.

The previous prime is 18370945337. The next prime is 18370945357. The reversal of 18370945356 is 65354907381.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 18370945299 and 18370945308.

It is not an unprimeable number, because it can be changed into a prime (18370945357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 765456045 + ... + 765456068.

It is an arithmetic number, because the mean of its divisors is an integer number (3572128266).

Almost surely, 2^18370945356 is an apocalyptic number.

It is an amenable number.

18370945356 is an abundant number, since it is smaller than the sum of its proper divisors (24494593836).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18370945356 is a wasteful number, since it uses less digits than its factorization.

18370945356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530912120 (or 1530912118 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 51.

The spelling of 18370945356 in words is "eighteen billion, three hundred seventy million, nine hundred forty-five thousand, three hundred fifty-six".