1323266010889 has 9 divisors (see below), whose sum is σ = 1328848942669. Its totient is φ = 1317706451500.

The previous prime is 1323266010817. The next prime is 1323266010893. The reversal of 1323266010889 is 9880106623231.

The square root of 1323266010889 is 1150333.

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

It is not a de Polignac number, because 1323266010889 - 2⁷ = 1323266010761 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1323266010089) 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 8 ways as a sum of consecutive naturals, for example, 288731292 + ... + 288735874.

Almost surely, 2^{1323266010889} is an apocalyptic number.

1323266010889 is the 1150333-rd square number.

1323266010889 is the 575167-th centered octagonal number.

It is an amenable number.

1323266010889 is a deficient number, since it is larger than the sum of its proper divisors (5582931780).

1323266010889 is an frugal number, since it uses more digits than its factorization.

1323266010889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9668 (or 4834 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 49.

Multiplying 1323266010889 by its sum of digits (49), we get a square (64840034533561 = 8052331²).

The spelling of 1323266010889 in words is "one trillion, three hundred twenty-three billion, two hundred sixty-six million, ten thousand, eight hundred eighty-nine".