2185448218245 has 48 divisors (see below), whose sum is σ = 3798576587520. Its totient is φ = 1162354560768.

The previous prime is 2185448218211. The next prime is 2185448218307. The reversal of 2185448218245 is 5428128445812.

2185448218245 is a `hidden beast` number, since 2 + 1 + 8 + 544 + 82 + 18 + 2 + 4 + 5 = 666.

It is not a de Polignac number, because 2185448218245 - 2⁷ = 2185448218117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2185448218191 and 2185448218200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42506824 + ... + 42558206.

It is an arithmetic number, because the mean of its divisors is an integer number (79137012240).

Almost surely, 2^{2185448218245} is an apocalyptic number.

It is an amenable number.

2185448218245 is a deficient number, since it is larger than the sum of its proper divisors (1613128369275).

2185448218245 is a wasteful number, since it uses less digits than its factorization.

2185448218245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53986 (or 53983 counting only the distinct ones).

The product of its digits is 6553600, while the sum is 54.

The spelling of 2185448218245 in words is "two trillion, one hundred eighty-five billion, four hundred forty-eight million, two hundred eighteen thousand, two hundred forty-five".