1823356000489 has 3 divisors (see below), whose sum is σ = 1823357350807. Its totient is φ = 1823354650172.

The previous prime is 1823356000463. The next prime is 1823356000511. The reversal of 1823356000489 is 9840006533281.

The square root of 1823356000489 is 1350317.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 320995899225 + 1502360101264 = 566565^2 + 1225708^2 .

It is not a de Polignac number, because 1823356000489 - 2¹¹ = 1823355998441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1823356000429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 675159 + ... + 2025475.

Almost surely, 2^{1823356000489} is an apocalyptic number.

1823356000489 is the 1350317-th square number.

1823356000489 is the 675159-th centered octagonal number.

It is an amenable number.

1823356000489 is a deficient number, since it is larger than the sum of its proper divisors (1350318).

1823356000489 is an frugal number, since it uses more digits than its factorization.

1823356000489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2700634 (or 1350317 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 49.

Multiplying 1823356000489 by its sum of digits (49), we get a square (89344444023961 = 9452219²).

The spelling of 1823356000489 in words is "one trillion, eight hundred twenty-three billion, three hundred fifty-six million, four hundred eighty-nine", and thus it is an aban number.