7768335312 has 30 divisors (see below), whose sum is σ = 21740549922. Its totient is φ = 2589445056.

The previous prime is 7768335287. The next prime is 7768335319. The reversal of 7768335312 is 2135338677.

It can be written as a sum of positive squares in only one way, i.e., 5284708416 + 2483626896 = 72696^2 + 49836^2 .

It is a super-2 number, since 2×7768335312² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7768335319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26973243 + ... + 26973530.

Almost surely, 2^7768335312 is an apocalyptic number.

7768335312 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

7768335312 is an abundant number, since it is smaller than the sum of its proper divisors (13972214610).

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

7768335312 is a wasteful number, since it uses less digits than its factorization.

7768335312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53946787 (or 53946778 counting only the distinct ones).

The product of its digits is 635040, while the sum is 45.

The square root of 7768335312 is about 88138.1603620135. The cubic root of 7768335312 is about 1980.5052031938.

The spelling of 7768335312 in words is "seven billion, seven hundred sixty-eight million, three hundred thirty-five thousand, three hundred twelve".