7997927616 has 168 divisors, whose sum is σ = 26407546880. Its totient is φ = 2266983936.

The previous prime is 7997927569. The next prime is 7997927629. The reversal of 7997927616 is 6167297997.

7997927616 is a `hidden beast` number, since 7 + 9 + 9 + 7 + 9 + 2 + 7 + 616 = 666.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504255 + ... + 519873.

Almost surely, 2^7997927616 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 7997927616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13203773440).

7997927616 is an abundant number, since it is smaller than the sum of its proper divisors (18409619264).

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

7997927616 is a wasteful number, since it uses less digits than its factorization.

7997927616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15771 (or 15758 counting only the distinct ones).

The product of its digits is 18003384, while the sum is 63.

The square root of 7997927616 is about 89431.1333708793. The cubic root of 7997927616 is about 1999.8272864188.

The spelling of 7997927616 in words is "seven billion, nine hundred ninety-seven million, nine hundred twenty-seven thousand, six hundred sixteen".