7439890732217 has 2 divisors, whose sum is σ = 7439890732218. Its totient is φ = 7439890732216.

The previous prime is 7439890732133. The next prime is 7439890732283. The reversal of 7439890732217 is 7122370989347.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4418954741161 + 3020935991056 = 2102131^2 + 1738084^2 .

It is a cyclic number.

It is not a de Polignac number, because 7439890732217 - 2¹⁴ = 7439890715833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7439890732217.

It is not a weakly prime, because it can be changed into another prime (7439890734217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3719945366108 + 3719945366109.

It is an arithmetic number, because the mean of its divisors is an integer number (3719945366109).

Almost surely, 2^{7439890732217} is an apocalyptic number.

It is an amenable number.

7439890732217 is a deficient number, since it is larger than the sum of its proper divisors (1).

7439890732217 is an equidigital number, since it uses as much as digits as its factorization.

7439890732217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32006016, while the sum is 62.

The spelling of 7439890732217 in words is "seven trillion, four hundred thirty-nine billion, eight hundred ninety million, seven hundred thirty-two thousand, two hundred seventeen".