1318094574889 has 9 divisors (see below), whose sum is σ = 1325626089399. Its totient is φ = 1310605629480.

The previous prime is 1318094574887. The next prime is 1318094574913. The reversal of 1318094574889 is 9884754908131.

The square root of 1318094574889 is 1148083.

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., 14524347289 + 1303570227600 = 120517^2 + 1141740^2 .

It is not a de Polignac number, because 1318094574889 - 2¹ = 1318094574887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1318094574887) 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, 207799852 + ... + 207806194.

It is an arithmetic number, because the mean of its divisors is an integer number (147291787711).

Almost surely, 2^{1318094574889} is an apocalyptic number.

1318094574889 is the 1148083-rd square number.

1318094574889 is the 574042-nd centered octagonal number.

It is an amenable number.

1318094574889 is a deficient number, since it is larger than the sum of its proper divisors (7531514510).

1318094574889 is an frugal number, since it uses more digits than its factorization.

1318094574889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13048 (or 6524 counting only the distinct ones).

The product of its (nonzero) digits is 69672960, while the sum is 67.

The spelling of 1318094574889 in words is "one trillion, three hundred eighteen billion, ninety-four million, five hundred seventy-four thousand, eight hundred eighty-nine".