85768981296 has 80 divisors (see below), whose sum is σ = 229828849536. Its totient is φ = 27542204928.

The previous prime is 85768981279. The next prime is 85768981297. The reversal of 85768981296 is 69218986758.

It is a self number, because there is not a number n which added to its sum of digits gives 85768981296.

It is not an unprimeable number, because it can be changed into a prime (85768981297) 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 15 ways as a sum of consecutive naturals, for example, 133950 + ... + 435293.

Almost surely, 2^85768981296 is an apocalyptic number.

85768981296 is a gapful number since it is divisible by the number (86) formed by its first and last digit.

It is an amenable number.

85768981296 is an abundant number, since it is smaller than the sum of its proper divisors (144059868240).

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

85768981296 is a wasteful number, since it uses less digits than its factorization.

85768981296 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569370 (or 569364 counting only the distinct ones).

The product of its digits is 104509440, while the sum is 69.

The spelling of 85768981296 in words is "eighty-five billion, seven hundred sixty-eight million, nine hundred eighty-one thousand, two hundred ninety-six".