1204433816089 has 9 divisors (see below), whose sum is σ = 1401085008351. Its totient is φ = 1032365257560.

The previous prime is 1204433816087. The next prime is 1204433816093. The reversal of 1204433816089 is 9806183344021.

It is a happy number.

The square root of 1204433816089 is 1097467.

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

It can be written as a sum of positive squares in only one way, i.e., 670978871689 + 533454944400 = 819133^2 + 730380^2 .

It is not a de Polignac number, because 1204433816089 - 2¹ = 1204433816087 is a prime.

It is a super-2 number, since 2×1204433816089² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (1204433816087) 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, 7603879 + ... + 7760659.

It is an arithmetic number, because the mean of its divisors is an integer number (155676112039).

Almost surely, 2^{1204433816089} is an apocalyptic number.

1204433816089 is the 1097467-th square number.

1204433816089 is the 548734-th centered octagonal number.

It is an amenable number.

1204433816089 is a deficient number, since it is larger than the sum of its proper divisors (196651192262).

1204433816089 is an frugal number, since it uses more digits than its factorization.

1204433816089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313576 (or 156788 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 49.

Multiplying 1204433816089 by its sum of digits (49), we get a square (59017256988361 = 7682269²).

1204433816089 divided by its sum of digits (49) gives a square (24580281961 = 156781²).

The spelling of 1204433816089 in words is "one trillion, two hundred four billion, four hundred thirty-three million, eight hundred sixteen thousand, eighty-nine".