2175138552243 has 16 divisors (see below), whose sum is σ = 3000309501600. Its totient is φ = 1400602127616.

The previous prime is 2175138552241. The next prime is 2175138552277. The reversal of 2175138552243 is 3422558315712.

It is a happy number.

It is not a de Polignac number, because 2175138552243 - 2¹ = 2175138552241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2175138552192 and 2175138552201.

It is not an unprimeable number, because it can be changed into a prime (2175138552241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71502468 + ... + 71532881.

It is an arithmetic number, because the mean of its divisors is an integer number (187519343850).

Almost surely, 2^{2175138552243} is an apocalyptic number.

2175138552243 is a deficient number, since it is larger than the sum of its proper divisors (825170949357).

2175138552243 is a wasteful number, since it uses less digits than its factorization.

2175138552243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143035526.

The product of its digits is 2016000, while the sum is 48.

The spelling of 2175138552243 in words is "two trillion, one hundred seventy-five billion, one hundred thirty-eight million, five hundred fifty-two thousand, two hundred forty-three".