2187185522049 has 64 divisors (see below), whose sum is σ = 3669260083200. Its totient is φ = 1275639278400.

The previous prime is 2187185522023. The next prime is 2187185522051. The reversal of 2187185522049 is 9402255817812.

It is a happy number.

2187185522049 is a `hidden beast` number, since 2 + 1 + 8 + 71 + 8 + 5 + 522 + 0 + 49 = 666.

It is not a de Polignac number, because 2187185522049 - 2¹² = 2187185517953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2187185521986 and 2187185522004.

It is not an unprimeable number, because it can be changed into a prime (2187185522059) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 984487 + ... + 2311619.

It is an arithmetic number, because the mean of its divisors is an integer number (57332188800).

Almost surely, 2^{2187185522049} is an apocalyptic number.

It is an amenable number.

2187185522049 is a deficient number, since it is larger than the sum of its proper divisors (1482074561151).

2187185522049 is a wasteful number, since it uses less digits than its factorization.

2187185522049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327363 (or 1327357 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 54.

The spelling of 2187185522049 in words is "two trillion, one hundred eighty-seven billion, one hundred eighty-five million, five hundred twenty-two thousand, forty-nine".