829440144023 has 4 divisors (see below), whose sum is σ = 829482154368. Its totient is φ = 829398133680.

The previous prime is 829440144007. The next prime is 829440144041. The reversal of 829440144023 is 320441044928.

829440144023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 829440144023 - 2⁴ = 829440144007 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (829440143023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20975543 + ... + 21015048.

It is an arithmetic number, because the mean of its divisors is an integer number (207370538592).

Almost surely, 2^829440144023 is an apocalyptic number.

829440144023 is a deficient number, since it is larger than the sum of its proper divisors (42010345).

829440144023 is a wasteful number, since it uses less digits than its factorization.

829440144023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42010344.

The product of its (nonzero) digits is 221184, while the sum is 41.

The spelling of 829440144023 in words is "eight hundred twenty-nine billion, four hundred forty million, one hundred forty-four thousand, twenty-three".