7989347429772 has 192 divisors, whose sum is σ = 21029750945280. Its totient is φ = 2345823535104.

The previous prime is 7989347429741. The next prime is 7989347429801. The reversal of 7989347429772 is 2779247439897.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 134432608 + ... + 134492024.

It is an arithmetic number, because the mean of its divisors is an integer number (109529952840).

Almost surely, 2^{7989347429772} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7989347429772, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10514875472640).

7989347429772 is an abundant number, since it is smaller than the sum of its proper divisors (13040403515508).

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

7989347429772 is a wasteful number, since it uses less digits than its factorization.

7989347429772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59880 (or 59878 counting only the distinct ones).

The product of its digits is 2688505344, while the sum is 78.

The spelling of 7989347429772 in words is "seven trillion, nine hundred eighty-nine billion, three hundred forty-seven million, four hundred twenty-nine thousand, seven hundred seventy-two".