768145320722 has 64 divisors (see below), whose sum is σ = 1322885662560. Its totient is φ = 331383177216.

The previous prime is 768145320659. The next prime is 768145320779. The reversal of 768145320722 is 227023541867.

It is a Cunningham number, because it is equal to 876439²+1.

It can be written as a sum of positive squares in 16 ways, for example, as 598037742241 + 170107578481 = 773329^2 + 412441^2 .

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 50234054 + ... + 50249342.

Almost surely, 2^768145320722 is an apocalyptic number.

768145320722 is a deficient number, since it is larger than the sum of its proper divisors (554740341838).

768145320722 is a wasteful number, since it uses less digits than its factorization.

768145320722 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16095.

The product of its (nonzero) digits is 1128960, while the sum is 47.

The spelling of 768145320722 in words is "seven hundred sixty-eight billion, one hundred forty-five million, three hundred twenty thousand, seven hundred twenty-two".