3445640465489 has 2 divisors, whose sum is σ = 3445640465490. Its totient is φ = 3445640465488.

The previous prime is 3445640465429. The next prime is 3445640465521. The reversal of 3445640465489 is 9845640465443.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3125940689089 + 319699776400 = 1768033^2 + 565420^2 .

It is an emirp because it is prime and its reverse (9845640465443) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3445640465489 is a prime.

It is not a weakly prime, because it can be changed into another prime (3445640465429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722820232744 + 1722820232745.

It is an arithmetic number, because the mean of its divisors is an integer number (1722820232745).

Almost surely, 2^{3445640465489} is an apocalyptic number.

It is an amenable number.

3445640465489 is a deficient number, since it is larger than the sum of its proper divisors (1).

3445640465489 is an equidigital number, since it uses as much as digits as its factorization.

3445640465489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 199065600, while the sum is 62.

The spelling of 3445640465489 in words is "three trillion, four hundred forty-five billion, six hundred forty million, four hundred sixty-five thousand, four hundred eighty-nine".