7989871032 has 576 divisors, whose sum is σ = 27885312000. Its totient is φ = 2046021120.

The previous prime is 7989870991. The next prime is 7989871063. The reversal of 7989871032 is 2301789897.

It is a super-4 number, since 4×7989871032⁴ (a number of 41 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 7989871032.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 101137569 + ... + 101137647.

It is an arithmetic number, because the mean of its divisors is an integer number (48412000).

Almost surely, 2^7989871032 is an apocalyptic number.

7989871032 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7989871032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13942656000).

7989871032 is an abundant number, since it is smaller than the sum of its proper divisors (19895440968).

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

7989871032 is a wasteful number, since it uses less digits than its factorization.

7989871032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The square root of 7989871032 is about 89386.0785133793. The cubic root of 7989871032 is about 1999.1555628465.

The spelling of 7989871032 in words is "seven billion, nine hundred eighty-nine million, eight hundred seventy-one thousand, thirty-two".