2175682985 has 16 divisors (see below), whose sum is σ = 2984867712. Its totient is φ = 1491360000.

The previous prime is 2175682981. The next prime is 2175682987. The reversal of 2175682985 is 5892865712.

It is not a de Polignac number, because 2175682985 - 2² = 2175682981 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2175682981) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104225 + ... + 123345.

It is an arithmetic number, because the mean of its divisors is an integer number (186554232).

Almost surely, 2^2175682985 is an apocalyptic number.

It is an amenable number.

2175682985 is a deficient number, since it is larger than the sum of its proper divisors (809184727).

2175682985 is a wasteful number, since it uses less digits than its factorization.

2175682985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22384.

The product of its digits is 2419200, while the sum is 53.

The square root of 2175682985 is about 46644.2170584950. The cubic root of 2175682985 is about 1295.7817881940.

The spelling of 2175682985 in words is "two billion, one hundred seventy-five million, six hundred eighty-two thousand, nine hundred eighty-five".