7285085685 has 24 divisors (see below), whose sum is σ = 12674098944. Its totient is φ = 3871035360.

The previous prime is 7285085669. The next prime is 7285085693. The reversal of 7285085685 is 5865805827.

It is a happy number.

7285085685 is a `hidden beast` number, since 7 + 2 + 8 + 508 + 56 + 85 = 666.

It is not a de Polignac number, because 7285085685 - 2⁴ = 7285085669 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 23 ways as a sum of consecutive naturals, for example, 286497 + ... + 310886.

It is an arithmetic number, because the mean of its divisors is an integer number (528087456).

Almost surely, 2^7285085685 is an apocalyptic number.

It is an amenable number.

7285085685 is a deficient number, since it is larger than the sum of its proper divisors (5389013259).

7285085685 is a wasteful number, since it uses less digits than its factorization.

7285085685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597665 (or 597662 counting only the distinct ones).

The product of its (nonzero) digits is 5376000, while the sum is 54.

The square root of 7285085685 is about 85352.7134015082. The cubic root of 7285085685 is about 1938.5554205886. Note that the first 3 decimals are identical.

The spelling of 7285085685 in words is "seven billion, two hundred eighty-five million, eighty-five thousand, six hundred eighty-five".