7909797168 has 360 divisors, whose sum is σ = 28271971728. Its totient is φ = 2045481984.

The previous prime is 7909797131. The next prime is 7909797173. The reversal of 7909797168 is 8617979097.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4860771 + ... + 4862397.

Almost surely, 2^7909797168 is an apocalyptic number.

7909797168 is a gapful number since it is divisible by the number (78) 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 7909797168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14135985864).

7909797168 is an abundant number, since it is smaller than the sum of its proper divisors (20362174560).

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

7909797168 is a wasteful number, since it uses less digits than its factorization.

7909797168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1721 (or 1705 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 63.

The square root of 7909797168 is about 88937.0404724601. The cubic root of 7909797168 is about 1992.4546671067.

The spelling of 7909797168 in words is "seven billion, nine hundred nine million, seven hundred ninety-seven thousand, one hundred sixty-eight".