7768895856 has 40 divisors (see below), whose sum is σ = 20077714944. Its totient is φ = 2588591040.

The previous prime is 7768895839. The next prime is 7768895857. The reversal of 7768895856 is 6585988677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7768895857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93135 + ... + 155601.

Almost surely, 2^7768895856 is an apocalyptic number.

It is an amenable number.

7768895856 is an abundant number, since it is smaller than the sum of its proper divisors (12308819088).

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

7768895856 is a wasteful number, since it uses less digits than its factorization.

7768895856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65069 (or 65063 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 69.

The square root of 7768895856 is about 88141.3402212605. The cubic root of 7768895856 is about 1980.5528381788.

The spelling of 7768895856 in words is "seven billion, seven hundred sixty-eight million, eight hundred ninety-five thousand, eight hundred fifty-six".