77730032778224 has 20 divisors (see below), whose sum is σ = 150604016679144. Its totient is φ = 38864480086848.

The previous prime is 77730032778197. The next prime is 77730032778329. The reversal of 77730032778224 is 42287723003777.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32321867 + ... + 34643370.

Almost surely, 2^{77730032778224} is an apocalyptic number.

It is an amenable number.

77730032778224 is a deficient number, since it is larger than the sum of its proper divisors (72873983900920).

77730032778224 is a wasteful number, since it uses less digits than its factorization.

77730032778224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67037792 (or 67037786 counting only the distinct ones).

The product of its (nonzero) digits is 38723328, while the sum is 59.

The spelling of 77730032778224 in words is "seventy-seven trillion, seven hundred thirty billion, thirty-two million, seven hundred seventy-eight thousand, two hundred twenty-four".