1223489395089 has 24 divisors (see below), whose sum is σ = 2015159006952. Its totient is φ = 708627340800.

The previous prime is 1223489395067. The next prime is 1223489395103. The reversal of 1223489395089 is 9805939843221.

1223489395089 is a `hidden beast` number, since 1 + 2 + 2 + 34 + 8 + 93 + 9 + 508 + 9 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 456890625 + 1223032504464 = 21375^2 + 1105908^2 .

It is not a de Polignac number, because 1223489395089 - 2⁹ = 1223489394577 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1223489395019) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 307561962 + ... + 307565939.

It is an arithmetic number, because the mean of its divisors is an integer number (83964958623).

Almost surely, 2^{1223489395089} is an apocalyptic number.

It is an amenable number.

1223489395089 is a deficient number, since it is larger than the sum of its proper divisors (791669611863).

1223489395089 is a wasteful number, since it uses less digits than its factorization.

1223489395089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615127937 (or 615127934 counting only the distinct ones).

The product of its (nonzero) digits is 33592320, while the sum is 63.

The spelling of 1223489395089 in words is "one trillion, two hundred twenty-three billion, four hundred eighty-nine million, three hundred ninety-five thousand, eighty-nine".