7421531182069 has 2 divisors, whose sum is σ = 7421531182070. Its totient is φ = 7421531182068.

The previous prime is 7421531182067. The next prime is 7421531182127. The reversal of 7421531182069 is 9602811351247.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4527915852100 + 2893615329969 = 2127890^2 + 1701063^2 .

It is an emirp because it is prime and its reverse (9602811351247) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7421531182069 - 2¹ = 7421531182067 is a prime.

It is a super-2 number, since 2×7421531182069² (a number of 27 digits) contains 22 as substring.

Together with 7421531182067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7421531182067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3710765591034 + 3710765591035.

It is an arithmetic number, because the mean of its divisors is an integer number (3710765591035).

It is a 1-persistent number, because it is pandigital, but 2⋅7421531182069 = 14843062364138 is not.

Almost surely, 2^{7421531182069} is an apocalyptic number.

It is an amenable number.

7421531182069 is a deficient number, since it is larger than the sum of its proper divisors (1).

7421531182069 is an equidigital number, since it uses as much as digits as its factorization.

7421531182069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 7421531182069 in words is "seven trillion, four hundred twenty-one billion, five hundred thirty-one million, one hundred eighty-two thousand, sixty-nine".