18146285945 has 8 divisors (see below), whose sum is σ = 23056457544. Its totient is φ = 13663085824.

The previous prime is 18146285881. The next prime is 18146285947. The reversal of 18146285945 is 54958264181.

It can be written as a sum of positive squares in 4 ways, for example, as 482812729 + 17663473216 = 21973^2 + 132904^2 .

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 18146285945 - 2⁶ = 18146285881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18146285947) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106742774 + ... + 106742943.

It is an arithmetic number, because the mean of its divisors is an integer number (2882057193).

Almost surely, 2^18146285945 is an apocalyptic number.

It is an amenable number.

18146285945 is a deficient number, since it is larger than the sum of its proper divisors (4910171599).

18146285945 is a wasteful number, since it uses less digits than its factorization.

18146285945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213485739.

The product of its digits is 2764800, while the sum is 53.

The spelling of 18146285945 in words is "eighteen billion, one hundred forty-six million, two hundred eighty-five thousand, nine hundred forty-five".