7989299520 has 56 divisors (see below), whose sum is σ = 25366029024. Its totient is φ = 2130479616.

The previous prime is 7989299501. The next prime is 7989299597. The reversal of 7989299520 is 259929897.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4160134 + ... + 4162053.

It is an arithmetic number, because the mean of its divisors is an integer number (452964804).

Almost surely, 2^7989299520 is an apocalyptic number.

It is an amenable number.

7989299520 is an abundant number, since it is smaller than the sum of its proper divisors (17376729504).

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

7989299520 is a wasteful number, since it uses less digits than its factorization.

7989299520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8322207 (or 8322197 counting only the distinct ones).

The product of its (nonzero) digits is 7348320, while the sum is 60.

The square root of 7989299520 is about 89382.8815825491. The cubic root of 7989299520 is about 1999.1078954672.

The spelling of 7989299520 in words is "seven billion, nine hundred eighty-nine million, two hundred ninety-nine thousand, five hundred twenty".