7965217852 has 12 divisors (see below), whose sum is σ = 13949293176. Its totient is φ = 3979705520.

The previous prime is 7965217831. The next prime is 7965217861. The reversal of 7965217852 is 2587125697.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 7965217852.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 719674 + ... + 730657.

It is an arithmetic number, because the mean of its divisors is an integer number (1162441098).

Almost surely, 2^7965217852 is an apocalyptic number.

It is an amenable number.

7965217852 is a deficient number, since it is larger than the sum of its proper divisors (5984075324).

7965217852 is a wasteful number, since it uses less digits than its factorization.

7965217852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451708 (or 1451706 counting only the distinct ones).

The product of its digits is 2116800, while the sum is 52.

The square root of 7965217852 is about 89248.0691779940. The cubic root of 7965217852 is about 1997.0972768038.

The spelling of 7965217852 in words is "seven billion, nine hundred sixty-five million, two hundred seventeen thousand, eight hundred fifty-two".