18183671045 has 8 divisors (see below), whose sum is σ = 21828633624. Its totient is φ = 14541451264.

The previous prime is 18183671041. The next prime is 18183671063. The reversal of 18183671045 is 54017638181.

It can be written as a sum of positive squares in 4 ways, for example, as 279357796 + 17904313249 = 16714^2 + 133807^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 18183671045 - 2² = 18183671041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 18183670987 and 18183671005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18183671041) 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 7 ways as a sum of consecutive naturals, for example, 671084 + ... + 697653.

It is an arithmetic number, because the mean of its divisors is an integer number (2728579203).

Almost surely, 2^18183671045 is an apocalyptic number.

It is an amenable number.

18183671045 is a deficient number, since it is larger than the sum of its proper divisors (3644962579).

18183671045 is a wasteful number, since it uses less digits than its factorization.

18183671045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1371399.

The product of its (nonzero) digits is 161280, while the sum is 44.

The spelling of 18183671045 in words is "eighteen billion, one hundred eighty-three million, six hundred seventy-one thousand, forty-five".