4206642507469 has 2 divisors, whose sum is σ = 4206642507470. Its totient is φ = 4206642507468.

The previous prime is 4206642507451. The next prime is 4206642507559. The reversal of 4206642507469 is 9647052466024.

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., 3689914437225 + 516728070244 = 1920915^2 + 718838^2 .

It is a cyclic number.

It is not a de Polignac number, because 4206642507469 - 2¹¹ = 4206642505421 is a prime.

It is a super-2 number, since 2×4206642507469² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4206642507569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2103321253734 + 2103321253735.

It is an arithmetic number, because the mean of its divisors is an integer number (2103321253735).

Almost surely, 2^{4206642507469} is an apocalyptic number.

It is an amenable number.

4206642507469 is a deficient number, since it is larger than the sum of its proper divisors (1).

4206642507469 is an equidigital number, since it uses as much as digits as its factorization.

4206642507469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17418240, while the sum is 55.

The spelling of 4206642507469 in words is "four trillion, two hundred six billion, six hundred forty-two million, five hundred seven thousand, four hundred sixty-nine".