2175930989811 has 24 divisors (see below), whose sum is σ = 3148436635344. Its totient is φ = 1448118620160.

The previous prime is 2175930989803. The next prime is 2175930989821. The reversal of 2175930989811 is 1189890395712.

2175930989811 is a `hidden beast` number, since 2 + 175 + 9 + 309 + 89 + 81 + 1 = 666.

It is not a de Polignac number, because 2175930989811 - 2³ = 2175930989803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2175930989821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13890355 + ... + 14046131.

It is an arithmetic number, because the mean of its divisors is an integer number (131184859806).

Almost surely, 2^{2175930989811} is an apocalyptic number.

2175930989811 is a deficient number, since it is larger than the sum of its proper divisors (972505645533).

2175930989811 is a wasteful number, since it uses less digits than its factorization.

2175930989811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158451 (or 158448 counting only the distinct ones).

The product of its (nonzero) digits is 9797760, while the sum is 63.

The spelling of 2175930989811 in words is "two trillion, one hundred seventy-five billion, nine hundred thirty million, nine hundred eighty-nine thousand, eight hundred eleven".