7285085808 has 640 divisors, whose sum is σ = 26835615744. Its totient is φ = 1642291200.

The previous prime is 7285085783. The next prime is 7285085809. The reversal of 7285085808 is 8085805827.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7285085809) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 99795660 + ... + 99795732.

Almost surely, 2^7285085808 is an apocalyptic number.

7285085808 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7285085808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13417807872).

7285085808 is an abundant number, since it is smaller than the sum of its proper divisors (19550529936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7285085808 is a wasteful number, since it uses less digits than its factorization.

7285085808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 1433600, while the sum is 51.

The square root of 7285085808 is about 85352.7141220477. The cubic root of 7285085808 is about 1938.5554314987. Note that the first 3 decimals are identical.

The spelling of 7285085808 in words is "seven billion, two hundred eighty-five million, eighty-five thousand, eight hundred eight".