77546330678 has 16 divisors (see below), whose sum is σ = 120765810816. Its totient is φ = 37305520320.

The previous prime is 77546330549. The next prime is 77546330699. The reversal of 77546330678 is 87603364577.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3604151 + ... + 3625602.

It is an arithmetic number, because the mean of its divisors is an integer number (7547863176).

Almost surely, 2^77546330678 is an apocalyptic number.

77546330678 is a deficient number, since it is larger than the sum of its proper divisors (43219480138).

77546330678 is a wasteful number, since it uses less digits than its factorization.

77546330678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7229959.

The product of its (nonzero) digits is 17781120, while the sum is 56.

The spelling of 77546330678 in words is "seventy-seven billion, five hundred forty-six million, three hundred thirty thousand, six hundred seventy-eight".