7285665823 has 2 divisors, whose sum is σ = 7285665824. Its totient is φ = 7285665822.

The previous prime is 7285665811. The next prime is 7285665833. The reversal of 7285665823 is 3285665827.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 7285665823 - 2²⁹ = 6748794911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7285665833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3642832911 + 3642832912.

It is an arithmetic number, because the mean of its divisors is an integer number (3642832912).

Almost surely, 2^7285665823 is an apocalyptic number.

7285665823 is a deficient number, since it is larger than the sum of its proper divisors (1).

7285665823 is an equidigital number, since it uses as much as digits as its factorization.

7285665823 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4838400, while the sum is 52.

The square root of 7285665823 is about 85356.1118081183. Note that the first 3 decimals coincide. The cubic root of 7285665823 is about 1938.6068773073.

The spelling of 7285665823 in words is "seven billion, two hundred eighty-five million, six hundred sixty-five thousand, eight hundred twenty-three".