3450644266369 has 2 divisors, whose sum is σ = 3450644266370. Its totient is φ = 3450644266368.

The previous prime is 3450644266361. The next prime is 3450644266379. The reversal of 3450644266369 is 9636624460543.

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., 3343412250000 + 107232016369 = 1828500^2 + 327463^2 .

It is a cyclic number.

It is not a de Polignac number, because 3450644266369 - 2³ = 3450644266361 is a prime.

It is a super-2 number, since 2×3450644266369² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3450644266361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1725322133184 + 1725322133185.

It is an arithmetic number, because the mean of its divisors is an integer number (1725322133185).

Almost surely, 2^{3450644266369} is an apocalyptic number.

It is an amenable number.

3450644266369 is a deficient number, since it is larger than the sum of its proper divisors (1).

3450644266369 is an equidigital number, since it uses as much as digits as its factorization.

3450644266369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67184640, while the sum is 58.

The spelling of 3450644266369 in words is "three trillion, four hundred fifty billion, six hundred forty-four million, two hundred sixty-six thousand, three hundred sixty-nine".