7947708564 has 48 divisors (see below), whose sum is σ = 19268827200. Its totient is φ = 2546589696.

The previous prime is 7947708553. The next prime is 7947708583. The reversal of 7947708564 is 4658077497.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28692 + ... + 129300.

It is an arithmetic number, because the mean of its divisors is an integer number (401433900).

Almost surely, 2^7947708564 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 7947708564, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9634413600).

7947708564 is an abundant number, since it is smaller than the sum of its proper divisors (11321118636).

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

7947708564 is a wasteful number, since it uses less digits than its factorization.

7947708564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100872 (or 100870 counting only the distinct ones).

The product of its (nonzero) digits is 11854080, while the sum is 57.

The square root of 7947708564 is about 89149.9218395619. The cubic root of 7947708564 is about 1995.6328512802.

The spelling of 7947708564 in words is "seven billion, nine hundred forty-seven million, seven hundred eight thousand, five hundred sixty-four".