7775709696 has 400 divisors, whose sum is σ = 25266585960. Its totient is φ = 2371092480.

The previous prime is 7775709691. The next prime is 7775709703. The reversal of 7775709696 is 6969075777.

It can be written as a sum of positive squares in 4 ways, for example, as 3851940096 + 3923769600 = 62064^2 + 62640^2 .

It is a super-2 number, since 2×7775709696² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7775709691) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28905850 + ... + 28906118.

Almost surely, 2^7775709696 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 7775709696, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12633292980).

7775709696 is an abundant number, since it is smaller than the sum of its proper divisors (17490876264).

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

7775709696 is a wasteful number, since it uses less digits than its factorization.

7775709696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357 (or 332 counting only the distinct ones).

The product of its (nonzero) digits is 35006580, while the sum is 63.

The square root of 7775709696 is about 88179.9846677238. The cubic root of 7775709696 is about 1981.1316946398.

The spelling of 7775709696 in words is "seven billion, seven hundred seventy-five million, seven hundred nine thousand, six hundred ninety-six".