77365335064 has 16 divisors (see below), whose sum is σ = 145063305720. Its totient is φ = 38681786880.

The previous prime is 77365335049. The next prime is 77365335067. The reversal of 77365335064 is 46053356377.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 77365334999 and 77365335017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77365335067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 405112 + ... + 564664.

Almost surely, 2^77365335064 is an apocalyptic number.

It is an amenable number.

77365335064 is a deficient number, since it is larger than the sum of its proper divisors (67697970656).

77365335064 is a wasteful number, since it uses less digits than its factorization.

77365335064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 220170 (or 220166 counting only the distinct ones).

The product of its (nonzero) digits is 4762800, while the sum is 49.

The spelling of 77365335064 in words is "seventy-seven billion, three hundred sixty-five million, three hundred thirty-five thousand, sixty-four".