7859775616 has 192 divisors, whose sum is σ = 20414116800. Its totient is φ = 2978519040.

The previous prime is 7859775611. The next prime is 7859775647. The reversal of 7859775616 is 6165779587.

It is not an unprimeable number, because it can be changed into a prime (7859775611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2551165 + ... + 2554243.

It is an arithmetic number, because the mean of its divisors is an integer number (106323525).

Almost surely, 2^7859775616 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 7859775616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10207058400).

7859775616 is an abundant number, since it is smaller than the sum of its proper divisors (12554341184).

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

7859775616 is a wasteful number, since it uses less digits than its factorization.

7859775616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3155 (or 3136 counting only the distinct ones).

The product of its digits is 22226400, while the sum is 61.

The square root of 7859775616 is about 88655.3755617785. The cubic root of 7859775616 is about 1988.2456880774.

The spelling of 7859775616 in words is "seven billion, eight hundred fifty-nine million, seven hundred seventy-five thousand, six hundred sixteen".