7212445165439 has 2 divisors, whose sum is σ = 7212445165440. Its totient is φ = 7212445165438.

The previous prime is 7212445165403. The next prime is 7212445165507. The reversal of 7212445165439 is 9345615442127.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7212445165439 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7212445365439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3606222582719 + 3606222582720.

It is an arithmetic number, because the mean of its divisors is an integer number (3606222582720).

Almost surely, 2^{7212445165439} is an apocalyptic number.

7212445165439 is a deficient number, since it is larger than the sum of its proper divisors (1).

7212445165439 is an equidigital number, since it uses as much as digits as its factorization.

7212445165439 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7257600, while the sum is 53.

The spelling of 7212445165439 in words is "seven trillion, two hundred twelve billion, four hundred forty-five million, one hundred sixty-five thousand, four hundred thirty-nine".