7665712488 has 576 divisors, whose sum is σ = 27883440000. Its totient is φ = 1889879040.

The previous prime is 7665712447. The next prime is 7665712513. The reversal of 7665712488 is 8842175667.

7665712488 is a `hidden beast` number, since 7 + 66 + 571 + 2 + 4 + 8 + 8 = 666.

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, 247281033 + ... + 247281063.

It is an arithmetic number, because the mean of its divisors is an integer number (48408750).

Almost surely, 2^7665712488 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 7665712488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13941720000).

7665712488 is an abundant number, since it is smaller than the sum of its proper divisors (20217727512).

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

7665712488 is a wasteful number, since it uses less digits than its factorization.

7665712488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 79 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 54.

The square root of 7665712488 is about 87554.0546633907. The cubic root of 7665712488 is about 1971.7454265579.

The spelling of 7665712488 in words is "seven billion, six hundred sixty-five million, seven hundred twelve thousand, four hundred eighty-eight".