2110497985 has 4 divisors (see below), whose sum is σ = 2532597588. Its totient is φ = 1688398384.

The previous prime is 2110497971. The next prime is 2110498081. The reversal of 2110497985 is 5897940112.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1257624369 + 852873616 = 35463^2 + 29204^2 .

It is a cyclic number.

It is not a de Polignac number, because 2110497985 - 2¹³ = 2110489793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 211049794 + ... + 211049803.

It is an arithmetic number, because the mean of its divisors is an integer number (633149397).

Almost surely, 2^2110497985 is an apocalyptic number.

It is an amenable number.

2110497985 is a deficient number, since it is larger than the sum of its proper divisors (422099603).

2110497985 is an equidigital number, since it uses as much as digits as its factorization.

2110497985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422099602.

The product of its (nonzero) digits is 181440, while the sum is 46.

The square root of 2110497985 is about 45940.1565626414. The cubic root of 2110497985 is about 1282.7095080571.

The spelling of 2110497985 in words is "two billion, one hundred ten million, four hundred ninety-seven thousand, nine hundred eighty-five".