12440434933 has 2 divisors, whose sum is σ = 12440434934. Its totient is φ = 12440434932.

The previous prime is 12440434907. The next prime is 12440434939. The reversal of 12440434933 is 33943404421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11214174609 + 1226260324 = 105897^2 + 35018^2 .

It is a cyclic number.

It is not a de Polignac number, because 12440434933 - 2⁵ = 12440434901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12440434892 and 12440434901.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12440434939) 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 as a sum of consecutive naturals, namely, 6220217466 + 6220217467.

It is an arithmetic number, because the mean of its divisors is an integer number (6220217467).

Almost surely, 2^12440434933 is an apocalyptic number.

It is an amenable number.

12440434933 is a deficient number, since it is larger than the sum of its proper divisors (1).

12440434933 is an equidigital number, since it uses as much as digits as its factorization.

12440434933 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 12440434933 in words is "twelve billion, four hundred forty million, four hundred thirty-four thousand, nine hundred thirty-three".