7945989852 has 48 divisors (see below), whose sum is σ = 18678125312. Its totient is φ = 2629065600.

The previous prime is 7945989851. The next prime is 7945989911. The reversal of 7945989852 is 2589895497.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7945989851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1889352 + ... + 1893552.

Almost surely, 2^7945989852 is an apocalyptic number.

It is an amenable number.

7945989852 is an abundant number, since it is smaller than the sum of its proper divisors (10732135460).

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

7945989852 is a wasteful number, since it uses less digits than its factorization.

7945989852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5338 (or 5336 counting only the distinct ones).

The product of its digits is 65318400, while the sum is 66.

The square root of 7945989852 is about 89140.2818707682. The cubic root of 7945989852 is about 1995.4889873655.

The spelling of 7945989852 in words is "seven billion, nine hundred forty-five million, nine hundred eighty-nine thousand, eight hundred fifty-two".