2124746437789 has 2 divisors, whose sum is σ = 2124746437790. Its totient is φ = 2124746437788.

The previous prime is 2124746437783. The next prime is 2124746437813. The reversal of 2124746437789 is 9877346474212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2122435232164 + 2311205625 = 1456858^2 + 48075^2 .

It is a cyclic number.

It is not a de Polignac number, because 2124746437789 - 2²⁹ = 2124209566877 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2124746437789.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2124746437783) 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, 1062373218894 + 1062373218895.

It is an arithmetic number, because the mean of its divisors is an integer number (1062373218895).

Almost surely, 2^{2124746437789} is an apocalyptic number.

It is an amenable number.

2124746437789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2124746437789 is an equidigital number, since it uses as much as digits as its factorization.

2124746437789 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 113799168, while the sum is 64.

The spelling of 2124746437789 in words is "two trillion, one hundred twenty-four billion, seven hundred forty-six million, four hundred thirty-seven thousand, seven hundred eighty-nine".