75331045489669 has 2 divisors, whose sum is σ = 75331045489670. Its totient is φ = 75331045489668.

The previous prime is 75331045489639. The next prime is 75331045489691. The reversal of 75331045489669 is 96698454013357.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75301401259044 + 29644230625 = 8677638^2 + 172175^2 .

It is a cyclic number.

It is not a de Polignac number, because 75331045489669 - 2⁹ = 75331045489157 is a prime.

It is a super-2 number, since 2×75331045489669² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75331045489598 and 75331045489607.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75331045489639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37665522744834 + 37665522744835.

It is an arithmetic number, because the mean of its divisors is an integer number (37665522744835).

Almost surely, 2^{75331045489669} is an apocalyptic number.

It is an amenable number.

75331045489669 is a deficient number, since it is larger than the sum of its proper divisors (1).

75331045489669 is an equidigital number, since it uses as much as digits as its factorization.

75331045489669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 587865600, while the sum is 70.

The spelling of 75331045489669 in words is "seventy-five trillion, three hundred thirty-one billion, forty-five million, four hundred eighty-nine thousand, six hundred sixty-nine".