2085345643 has 2 divisors, whose sum is σ = 2085345644. Its totient is φ = 2085345642.

The previous prime is 2085345611. The next prime is 2085345671. The reversal of 2085345643 is 3465435802.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2085345643 - 2⁵ = 2085345611 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2085345596 and 2085345605.

It is not a weakly prime, because it can be changed into another prime (2085345043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1042672821 + 1042672822.

It is an arithmetic number, because the mean of its divisors is an integer number (1042672822).

Almost surely, 2^2085345643 is an apocalyptic number.

2085345643 is a deficient number, since it is larger than the sum of its proper divisors (1).

2085345643 is an equidigital number, since it uses as much as digits as its factorization.

2085345643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 40.

The square root of 2085345643 is about 45665.5848862138. The cubic root of 2085345643 is about 1277.5934688295.

The spelling of 2085345643 in words is "two billion, eighty-five million, three hundred forty-five thousand, six hundred forty-three".