7985391352 has 32 divisors (see below), whose sum is σ = 15017980320. Its totient is φ = 3980620800.

The previous prime is 7985391329. The next prime is 7985391361. The reversal of 7985391352 is 2531935897.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7985391352.

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 7 ways as a sum of consecutive naturals, for example, 6648352 + ... + 6649552.

It is an arithmetic number, because the mean of its divisors is an integer number (469311885).

Almost surely, 2^7985391352 is an apocalyptic number.

It is an amenable number.

7985391352 is a deficient number, since it is larger than the sum of its proper divisors (7032588968).

7985391352 is a wasteful number, since it uses less digits than its factorization.

7985391352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3031 (or 3027 counting only the distinct ones).

The product of its digits is 2041200, while the sum is 52.

The square root of 7985391352 is about 89361.0169592983. The cubic root of 7985391352 is about 1998.7818708980.

The spelling of 7985391352 in words is "seven billion, nine hundred eighty-five million, three hundred ninety-one thousand, three hundred fifty-two".