2144821623 has 8 divisors (see below), whose sum is σ = 3268299648. Its totient is φ = 1225612344.

The previous prime is 2144821607. The next prime is 2144821673. The reversal of 2144821623 is 3261284412.

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

It is not a de Polignac number, because 2144821623 - 2⁴ = 2144821607 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2144821673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51067161 + ... + 51067202.

It is an arithmetic number, because the mean of its divisors is an integer number (408537456).

Almost surely, 2^2144821623 is an apocalyptic number.

2144821623 is a deficient number, since it is larger than the sum of its proper divisors (1123478025).

2144821623 is a wasteful number, since it uses less digits than its factorization.

2144821623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102134373.

The product of its digits is 18432, while the sum is 33.

The square root of 2144821623 is about 46312.2189384184. The cubic root of 2144821623 is about 1289.6258400475.

It can be divided in two parts, 21448 and 21623, that added together give a triangular number (43071 = T₂₉₃).

The spelling of 2144821623 in words is "two billion, one hundred forty-four million, eight hundred twenty-one thousand, six hundred twenty-three".