3480566581 has 2 divisors, whose sum is σ = 3480566582. Its totient is φ = 3480566580.

The previous prime is 3480566539. The next prime is 3480566597. The reversal of 3480566581 is 1856650843.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2261858481 + 1218708100 = 47559^2 + 34910^2 .

It is a cyclic number.

It is not a de Polignac number, because 3480566581 - 2²⁷ = 3346348853 is a prime.

It is a super-2 number, since 2×3480566581² = 24228687449548059122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3480566381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1740283290 + 1740283291.

It is an arithmetic number, because the mean of its divisors is an integer number (1740283291).

Almost surely, 2^3480566581 is an apocalyptic number.

It is an amenable number.

3480566581 is a deficient number, since it is larger than the sum of its proper divisors (1).

3480566581 is an equidigital number, since it uses as much as digits as its factorization.

3480566581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 46.

The square root of 3480566581 is about 58996.3268432875. The cubic root of 3480566581 is about 1515.4792067851.

The spelling of 3480566581 in words is "three billion, four hundred eighty million, five hundred sixty-six thousand, five hundred eighty-one".