2144646485 has 8 divisors (see below), whose sum is σ = 2577557376. Its totient is φ = 1713062800.

The previous prime is 2144646473. The next prime is 2144646499. The reversal of 2144646485 is 5846464412.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2144646485 - 2³⁰ = 1070904661 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328241 + ... + 334710.

It is an arithmetic number, because the mean of its divisors is an integer number (322194672).

Almost surely, 2^2144646485 is an apocalyptic number.

It is an amenable number.

2144646485 is a deficient number, since it is larger than the sum of its proper divisors (432910891).

2144646485 is an equidigital number, since it uses as much as digits as its factorization.

2144646485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 663603.

The product of its digits is 737280, while the sum is 44.

The square root of 2144646485 is about 46310.3280597320. The cubic root of 2144646485 is about 1289.5907371069.

The spelling of 2144646485 in words is "two billion, one hundred forty-four million, six hundred forty-six thousand, four hundred eighty-five".