3480820056689 has 2 divisors, whose sum is σ = 3480820056690. Its totient is φ = 3480820056688.

The previous prime is 3480820056613. The next prime is 3480820056709. The reversal of 3480820056689 is 9866500280843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3399248127025 + 81571929664 = 1843705^2 + 285608^2 .

It is a cyclic number.

It is not a de Polignac number, because 3480820056689 - 2²⁸ = 3480551621233 is a prime.

It is a super-2 number, since 2×3480820056689² (a number of 26 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (3480820056589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1740410028344 + 1740410028345.

It is an arithmetic number, because the mean of its divisors is an integer number (1740410028345).

Almost surely, 2^{3480820056689} is an apocalyptic number.

It is an amenable number.

3480820056689 is a deficient number, since it is larger than the sum of its proper divisors (1).

3480820056689 is an equidigital number, since it uses as much as digits as its factorization.

3480820056689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19906560, while the sum is 59.

The spelling of 3480820056689 in words is "three trillion, four hundred eighty billion, eight hundred twenty million, fifty-six thousand, six hundred eighty-nine".