123466888889 has 2 divisors, whose sum is σ = 123466888890. Its totient is φ = 123466888888.

The previous prime is 123466888849. The next prime is 123466888921. The reversal of 123466888889 is 988888664321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105175678864 + 18291210025 = 324308^2 + 135245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123466888889 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (123466888819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61733444444 + 61733444445.

It is an arithmetic number, because the mean of its divisors is an integer number (61733444445).

Almost surely, 2^123466888889 is an apocalyptic number.

It is an amenable number.

123466888889 is a deficient number, since it is larger than the sum of its proper divisors (1).

123466888889 is an equidigital number, since it uses as much as digits as its factorization.

123466888889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 254803968, while the sum is 71.

The spelling of 123466888889 in words is "one hundred twenty-three billion, four hundred sixty-six million, eight hundred eighty-eight thousand, eight hundred eighty-nine".