12354895489 has 2 divisors, whose sum is σ = 12354895490. Its totient is φ = 12354895488.

The previous prime is 12354895481. The next prime is 12354895541. The reversal of 12354895489 is 98459845321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8287007089 + 4067888400 = 91033^2 + 63780^2 .

It is a cyclic number.

It is not a de Polignac number, because 12354895489 - 2³ = 12354895481 is a prime.

It is a super-2 number, since 2×12354895489² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12354895481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6177447744 + 6177447745.

It is an arithmetic number, because the mean of its divisors is an integer number (6177447745).

Almost surely, 2^12354895489 is an apocalyptic number.

It is an amenable number.

12354895489 is a deficient number, since it is larger than the sum of its proper divisors (1).

12354895489 is an equidigital number, since it uses as much as digits as its factorization.

12354895489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12441600, while the sum is 58.

The spelling of 12354895489 in words is "twelve billion, three hundred fifty-four million, eight hundred ninety-five thousand, four hundred eighty-nine".