7985405652 has 48 divisors (see below), whose sum is σ = 22415178240. Its totient is φ = 2161462752.

The previous prime is 7985405573. The next prime is 7985405663. The reversal of 7985405652 is 2565045897.

It is a junction number, because it is equal to n+sod(n) for n = 7985405595 and 7985405604.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2500098 + ... + 2503289.

It is an arithmetic number, because the mean of its divisors is an integer number (466982880).

Almost surely, 2^7985405652 is an apocalyptic number.

It is an amenable number.

7985405652 is an abundant number, since it is smaller than the sum of its proper divisors (14429772588).

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

7985405652 is a wasteful number, since it uses less digits than its factorization.

7985405652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003420 (or 5003418 counting only the distinct ones).

The product of its (nonzero) digits is 3024000, while the sum is 51.

The square root of 7985405652 is about 89361.0969717807. The cubic root of 7985405652 is about 1998.7830640169.

The spelling of 7985405652 in words is "seven billion, nine hundred eighty-five million, four hundred five thousand, six hundred fifty-two".